Problem: Article: The internet is full of misinformation and half-truths when it comes to beating drug tests. Many of the most commonly-cited tricks and home remedies aren't supported by any scientific evidence whatsoever. Thus, it's important to be very skeptical before trying one of these methods to avoid wasting your time and money or needlessly failing your test. The methods in this section may help you but are by no means guaranteed to work. Applied improperly, some of these methods can even increase the chance that you fail your test, so proceed with caution. The dilution method for beating a urine test works on the principle that, since a positive or negative result is based on the concentration of THC metabolites in your urine, giving yourself extremely dilute urine can bring your concentration below 50ng./ml (the cut-off point for most drug tests), allowing you to pass the test. Unfortunately, many urine tests now account for this strategy, requiring the use of several countermeasures. See below for a brief guide to "dilution".  Starting three days before your test, build up the creatinine levels in your system.  Do this by eating a lots red meat or taking creatine supplements (available in specialty health food, vitamin and supplement stores). This first step is important because many urine tests check for this substance (a metabolite of creatine) to make sure that your urine isn’t diluted. Failure to take this step can cause you to fail the test on suspicion of diluting your urine. An hour or two before the test, take 50 to 100 mg. of B2, B12 or B-complex to add color to your urine.  Then, drink a glass of water every 15 minutes or so. You should drink about a quart (roughly a liter) of water.  Don't overdo your water intake to the point of water intoxication - a real and lethal condition.  You should also urinate at least once during this time because you don't want to submit your first urine sample for testing. When it is time to give the sample, take it “midstream”, in other words, first pee into the toilet and then into the collection cup.  This will give you the best chance of the lowest concentration of metabolites, as this flushes any old (higher-concentration) urine from the urethra.  If your urine comes off as too dilute, and you get a second chance to take the test, schedule it as far out as possible.  This will give you time to either reach the end of your detectable period or to try the dilution method again, making adjustments so that you don’t over-dilute. Drinking water will not “flush" the THC out of your system; it simply serves the purpose of diluting your urine. Hair tests require the person administering the test to cut a short lock of hair from your head - no hair, no test. In such a case, the test-giver may ask for a sample of body hair. To avoid this, you could conceivably  shave every hair on your body before the test and claim that you’re a body builder or swimmer. However, if you appeared for your initial interview with a full head of hair or noticeable body hair, your employer will likely suspect that you're cheating. Thus, the best policy may be to shave before the interview itself so that your story is consistent. Every type of marijuana test has a different "window" in which it tests for THC or its metabolites. Thus, if you can time your test (and/or your marijuana use) so that your last usage falls outside of this window, you can improve your chances of passing (though not guarantee them). Notably, most hair tests are unable to detect pot use within the last few days because the length of hair in which THC from this use is present has not yet emerged from the scalp. Below are the detection windows for the common methods of marijuana testing, assuming a single use of marijuana:  Saliva test - 12-24 hours after use Urine test - 1-3 days after use Blood test - 1-3 days after use Hair test - from 3-5 days after use up to 90 days after use Note - for heavy users, these windows will be substantially less forgiving. When all else fails, try to postpone or re-schedule your test. Every extra day you give yourself increases the chance that you'll pass your test unscathed. Even just a day or two can make a significant difference. For instance, one (admittedly informal) study found that, under the right circumstances, certain types of urine tests can give "clean" results in as little as 24 to 48 hours after marijuana use.
Summary: Be skeptical. Try the dilution method. Alter your hair. Take advantage of "gaps" in the tests' detection windows. Stall for time.

In one sentence, describe what the following article is about: Use a glass or jar that is heavy on the bottom so that it easily stays upright. The water should be cold or room temperature, but not warm. The glass or jar should be tall enough so that it can keep the green onions upright. For example, a pint glass or a large canning jar works well. Since green onions are typically sold with roots still attached, these roots can be used to help keep the onions fresh. By submerging the roots in water, you allow the onions to keep taking in water, which helps the onions stay firm and fresh. Even if the roots themselves have been trimmed off your green onions, but the root end remains, the plant will grow new roots in water. In order to keep the right level of humidity around your green onions in a refrigerator, you need to tent them with a plastic bag. This can be a produce bag or a zip-lock bag, whatever you have available.  It may be easiest to use the produce bag that you brought the green onions home in. If you have tented your green onions with a produce bag, then you can use a rubber band or string to cinch the plastic bag around the container. If you have used a zip-lock bag, you can simply close the zip-lock edge as much as possible toward the sides of the container. The plastic bag does not need to be totally sealed so that it is airtight. You simply want to keep some of the humidity from the water around the onions. If the plastic bag was not there, the refrigerator would remove all of it. Place the glass with the onions in it on a tall shelf of your refrigerator. Put it in a spot where it won't get bumped a lot and where it will be stable so that it doesn't fall over and spill water all over the fridge. When you want to use your onions, just take the container out, remove the bag, remove an onion, place the plastic bag back on, and put it back in the fridge. To keep the onions fresh, you will need to refresh the water regularly. If you don't, mold can accumulate on the surface of the water and can begin to decay the onions. When you change out the water, you can also rinse off the green onion root sections. This will help to remove any bacteria or mold that might be starting to grow on them.
Summary:
Fill a glass or tall jar with 1–2 inches (2.5–5.1 cm) of water. Put the root end of the onions in the water. Cover the onions and the top of the container in a plastic bag. Cinch the plastic bag around the top of the container. Put the glass in your refrigerator. Change the water every few days.