In one sentence, describe what the following article is about: Lenses come with a number of added features, such as scratch-resistant coatings and color-changing features meant to offer ultraviolet protection. While many of these features do effectively provide what they offer, they are also largely unnecessary. If you have a tight budget, skip the extras and stick with a basic prescription lens.  If you purchase your eyeglasses from a department store or popular eyeglasses chain store, you may be able to find coupons in magazines or online. Many carriers cover a portion of the cost for eyeglasses if you buy them at specific places. Depending on your coverage, you could have more or less choice available to you.
Summary: Only buy what you need. Shy away from brand names if your budget is low and you don't need to get the latest styles. Look for coupons. Check with your medical insurance.

In one sentence, describe what the following article is about: Look online or in your local hardware store for spray paint that is specifically made for use on metal. Avoid generic brands that will leave the coat on the frame looking uneven.  Never combine different brands of spray paint. The different paints might react badly with each other.  If you want the bike frame to look matte instead of glossy, look for spray paint that says “matte finish” on the can. Hold the can of spray paint around 1 foot (0.3 m) (30.48 cm) away from the frame while you’re spraying it, and keep the can in constant motion. Avoid spraying continuously in one area, or you will end up with drip marks. Make your way around the entire frame until the whole surface has been covered with paint. Don’t worry if you still see some of the old paint showing through the first coat. You want to do several thin coats as opposed to one thick coat, so the old paint will be covered up after you apply more coats later on. Once the first coat is completely dry, repeat the spray-painting process, making sure you get another thin, even coat on the frame. Always wait 15-30 minutes in between coats. The amount of coats you need will depend on the color and type of spray paint you use. When you can’t see the old paint or metal on the frame, and the new paint looks even, you’ve applied enough coats of paint. Wait a few hours after spray painting before you apply the clear coat. Once the frame is completely dry, spray an even layer of clear coat all over the bike, similarly to how you applied the spray paint. For the best results, apply three coats of clear coat. Let each coat dry for 15-30 minutes before you apply the next one. Avoid touching or moving the bike during this period. If you painted outside, check the weather forecast and carefully move the bike inside if it’s going to rain or snow. Once it’s completely dry, go ahead and remove any painter’s tape you put on it during the prepping stages. . Put back on all of the parts you detached from the frame earlier, including the wheels, the bottom bracket, the chain, the left and right cranks, the front and rear derailleurs, the handlebars, the brakes, the seat, and the front forks. Now you’re ready to try out your brand-new looking bike!
Summary: Use a high-quality spray paint to paint the frame. Spray paint the first coat on the bike frame. Let the first coat dry for 15-30 minutes before you apply the second coat. Continue applying coats of paint until the old frame is completely covered. Apply a clear coat to protect the bike from rust and keep it looking new. Let the bike frame dry for a full 24 hours. Reassemble the bike

In one sentence, describe what the following article is about: One of the things that kills your defense is getting tired and dropping your hands down, which leaves you unprotected. The best way to train so that you don’t get tired as fast is to perform all of these defensive techniques while you hold light dumbbells. Your arms will build strength in the muscles that keep your hands up. You can also throw punches while you hold the dumbbells to build up strength behind your punches. Jumping rope is great for overall cardio conditioning and for increasing the dexterity of your feet. It helps you build good footwork and improve your speed in the ring. Switch up the jump rope exercises you do by jumping on both feet, then a few jumps on your left foot, and a few on your right foot.  Push yourself to get more jumps without stopping. You can also incorporate more complex moves like butt kickers, high knees, or skips into your jump rope routine. Sparring is important to implementing all of the defensive techniques you’ve learned. Don’t try to beat your opponent during sparring, but try to be effective with your defense. It’s also important to spar with as many different people as you can to get used to defending against various fighting styles.
Summary:
Hold dumbbells while you practice. Jump rope every day. Spar with an opponent and focus on defense rather than attack.