I only use the "work bag" now that I make dry ice hash.
Find a source of dry ice (usually very cheap), and look up the dry ice method. Youtube has a few good videos on it.
Definitely a lot easier and fast than making bubble the traditional way, and you preserve all the flavor/scent of the weed since it's a dry sieve. The first few seconds of shaking yields you a very blonde resin that smells amazing. Highest quality. After more time shaking, it comes out green, so it makes sense to keep the first 15-30 seconds separate from after.