And the 100mg is the most cost effective, and easiest to store. Contrary to what some folks apparently think, 100mg nicotine isn't exactly toxic waste -- reasonable care should be taken, of course, but it's not a case of OH MY GOD I GOT A DROP ON ME, THE SKY IS FALLING! or anything like that. If you do happen to get some on you, just rinse with cold water -- warm water opens the pores, which makes it even easier for nic to absorb. Naturally if you have any pets or kids around, be sure to wipe up any spills very carefully.
Andria