I squeeze mine out with two spoons piggy backed. Gets every drip out.
I never boil mine. just use them like they are.. call me crazy.. lol
PS> I do blow off vapor from the hits the first few minutes without taking them into my lungs to get rid of that cotton taste that happens from a new wick.
... Now, if you're tearing the tips off of old q-tips, or you found an old opened bag of cotton in your garage, then ok .. otherwise, boiling cotton is ummm ... un poco loco 
not to be harsh... but Im gonna be anyway...
all of these people being obsesive on boiling cotton because of "impurities".... wonder if they gave any thought as to what was in the filters of the ciggies they smoked...
I do mine cuz it tastes nasty if I don't...
Its wild how so many do not taste it.
If no boil its there, everyone has different taste buds
I hate fishy fish I cannot perceive how people eat most fish i do enjoy whiting and finally tilapia but almost everything else ewww
Shark is so nasty I tried ripping my tongue out lol
yeah we all are different so you guys must be aliens who cannot taste it, it is funky tasting. lol
I'm so glad this thread came up. I've felt like an unclean heathen for the last couple of months for NOT boiling my cotton balls. Appears I am not alone!Just seems like a waste of time unless you are going to boil it in distilled water, and I wasn't going to.
The one thing I will do though is wash my hands before handling the cotton, and place the cotton that I am using on a clean surface. I am a bit obsessive about immediately resealing the bag after I remove, and/or replace a piece of cotton into the bag. 
I would suggest putting them in front of a heat register in your home to speed the drying (do you guys HAVE those in S Florida, lol?). Otherwise a good shot with a hair dryer (on a lower heat setting) for several minutes speeds up the drying process.
I've never heard of anything sterile being dirty!