Problem: Article: Staying hydrated is important for your health, but if you're about to board a bus for a long ride, it's wise not to chug water or any other liquid just before boarding. If you can't stand being thirsty, bring a water bottle and wet your mouth with tiny sips throughout your trip, rather than drinking it all at once.  Say no to that large latte or giant soda before you get on the bus! Caffeine is a diuretic, and will cause you to pee more often than usual. If you need your morning coffee, try to drink it well before it's time to get on the bus, so it has time to get through your system. Even worse than caffeine is alcohol, which prompts your body to produce more urine than the same amount of water would do. Avoid drinking it in any form before or during your bus ride. Most buses that will be traveling for more than a few hours have bathrooms these days. You can call ahead and ask the bus line you're traveling with just to make sure. The problem is that bus bathrooms are often less than clean, being very dirty at worst, as they aren't always cleaned for each new trip, and on a full bus there's frequently a line to use them. If the bus bathroom is very dirty, or if there is likely to be a line, then the best approach is to board armed with tips and tricks you can use to hold your bladder for as long as possible, and think of the bus bathroom as a backup you can use if you really have to go. On very long bus rides, there's usually a rest stop or two. Even if the bus doesn't have a usable bathroom, you'll eventually have somewhere to relieve yourself. Again, calling ahead to check on the situation will help you get mentally prepared. If you know when the next stop is going to be, it'll be easier to distract yourself for the allotted amount of time. If you have no idea when you'll get the opportunity to go, holding your pee will feel like endless torture. Remember when your parents made you pee before road trips, even if you didn't have to go? This is especially important when you're about to go on a long bus trip with few or no stops before the destination, and especially if there's not a bathroom on the bus. Take advantage of your last chance to use the bathroom at home so your bus ride will be as trouble-free as possible. For both men and women, the amount of urine that's released from your bladder is controlled by your pelvic floor muscles. The Knack maneuver is an exercise designed to strengthen the pelvic floor muscles so you'll have more control when it comes to urinating. If you're on a bus and you really need to go, doing the Knack maneuver can send a message to your brain telling it that now's not a good time to pee, and the urge will become less strong. Try this before your trip:  Find your pelvic floor muscles. They're the muscles that tense up when you're holding your pee, or when you stop peeing mid-stream. Tense the muscles, then cough at the same time. Keep the muscles tensed until you're done coughing, then release. Repeat 10 to 15 times every day leading up to your bus trip. If you have a long trip coming up and you predict you're going to have trouble holding your bladder, there's no shame in protecting yourself in case of emergency! Head to the drugstore and pick out some protective supplies so you don't have an accident. Just make sure you put on the diaper before boarding the bus.  Adult diaper products were designed to help people deal with urinary incontinence, but they're commonly used by people with all sorts of needs, like brides with wedding dresses too puffy to remove for a bathroom break. You can buy small protective pads similar to sanitary napkins or larger, full-coverage diapers depending on what you think you'll need.
Summary: Don't drink too much before you board the bus. Check to see that the bus has a bathroom. See if and when the bus will pull over for rest stops. Go while you still have the chance. Strengthen your pelvic floor muscles. Consider wearing pads or adult diapers, just in case.

In one sentence, describe what the following article is about: This design calls for a one-foot section of two-inch diameter PVC tubing, an end cap for the two-inch PVC, PVC glue, superglue, velcro, a spring, plastic discs, a paint can opener, a drill, a ruler, and plenty of ammunition. The best springs for this design are long, medium coil tension springs such as those found on the inside of the “snakes” in practical joke canisters that spring out when opened. Superglue this spring directly to the center of the PVC end cap. You can easily cut this plastic disc out of something household such as an empty laundry detergent bottle. Most importantly, cut the disc with a 1.5” diameter so that it can easily fit flat down the PVC tube. Center this disc on the opposite end of the spring and attach it with more superglue. You want to test how deep you can coil the spring into the tube before drilling the first hole, so fit the end cap onto the tube without gluing it and push the plastic disc all the way down with a ruler. Use that to gauge how far the spring coils down the tube, and drill the first hole in the tube one-half inch more shallow than the depressed disc. Drill the second hole at the opposite end of the tube about one inch from the end. each hole perforate both sides of the tube in a perfectly straight line. Use a drill bit large enough so that you can insert the paint can opener through the holes. Once you have your holes drilled, you can glue the end cap holding the spring into place on the tube. You’ll want to give the glue thirty minutes to dry before testing the launcher. To make this launcher resemble an M203 grenade launcher, you can attach it under the barrel of a carbine-style Nerf or Airsoft gun with velcro. Simply peel the plastic backing off a velcro strip and place one end on the tube and the other on the gun.  You can use the wall-safe velcro types, which will even allow you to remove the velcro easily when you want. For select Nerf models such as the Recon, you can use the sight that attaches to the gun and slides off instead. Attach this piece to the tube, and you can clip the launcher to the gun where that slides and locks into place.  You can just as easily use this design without it being attached to anything else as well. Push the spring all the way down, then insert the painter can opener key into the hole drilled into the bottom of the tube. This will hold the spring coiled while you load the launcher. This design can hold a ton of Nerf darts. Insert the darts in sets of five or six to keep them straight as they drop down the tube. You can place about three of these layers to fill the tube. Once you have loaded the tube, place a second plastic disc with the same diameter as the first one you cut into the tube on top of the ammo load. Hold this disc down while you remove the paint can opener from the bottom set of holes and insert it back into the top set of holes in the top of the barrel. If you still have some of the old Nerf ball-type ammunition, these fit in the tube and fire effectively as well. Now you simply have to aim the launcher and pull the paint can opener back out as though it were a firing pin. The high load of ammunition may not explode on impact (obviously), but the spread of the ammunition gives you a much more effective idea of a blast radius. Just like an M203, the angle of the launcher is how you aim. Practice firing it several times to get a feel for the trajectory of the launch, and then you will be able to aim proficiently in no time.
Summary:
Gather materials. Superglue the spring to the inside of the PVC end cap. Superglue a plastic disc to the other end of the spring. Drill two holes in the PVC tube. Use the PVC glue to glue the end cap onto the tube. Attach the launcher to your favorite Nerf gun with velcro. Prime the launcher. Load the launcher. Fire the launcher.