I use rubbing (isopropyl) alcohol quite often, but found that I hated the large container that easily spilled and didn't dispense small amounts very easily. This instructible will show you how to take an existing squeeze bottle from ACT, etc and turn it into a spill-proof, easy dosing container for various household chemicals.
All you need is an empty ACT bottle and a pliers. Even if you don't use fluoride rinses, a bottle of generic ACT at Target is only about $2 and you can either use the rinse or discard if you like.
Step 1: Buy yourself a fluoride rinse bottle
As I mentioned, these can be had if you already use a daily fluoride rinse, such as ACT. Any kind you like, all we are after is the squeeze bottle for the dosing cup at the top.
Target sells generic "ACT" fluoride rinse for about $2 so you won't break the bank to get one.