Here's the best way i found after doing a ton of research:
1. buy Helios Instant, Anytime, Anywhere Reusable portable Wrist heat pad or Baby Bottle warmers
2. buy synthetic urine of choice
3. buy hand warmer packets
4. buy underwear and wear them to work
5. buy small nondigital thermoment (don't want a beeping in the test room)
Always:
1. wear underwear to work
2. have rubber band, thermometer, fake urine, hand warmer, baby bottle warmer, 3oz bottle, water bottle in your glove box
Process:
You're told to to take go to facility and take drug test
1. go to car, calmy remove your pee kit from glove box
2. mix the urine as directed, insert into bottle, activate baby bottle warmer and put bottle of urine into it.
3. proceed to facility
4. after 10 min. check on the temp. Baby bottle warmer can heat liquid to 130 degrees, shoot for a 100.
5. activate hand warmer and rubber band the sample to it with thermometer.
6.put into underwear and head into the facility with confidence.
7. once in the pee room, check the temp of sample, if too hot place into toilet water to cool down to the correct temp. between 95-99.
8. shake and then put into sample cup.
9. repack your undies and smile! pee a little in the toilet, and head out
* i recomend the baby bottle warmers because if you are at work and they tell u to do a random, you don't have time to go home and microwave the pee as most of the others will instruct you to do so. Good luck my friends, it's ridiculous to have to hide the fact we smoke the herb, but gotta pay the rent.