Thanks chaps. I think I'll go ahead and buy these bags and give it a go.
Regarding the dyeing, how easy (or not) would it be to dye Sarah Connor's green vest white?
Couldn't you bleach the vest to make it white? From what I understand the longer it sits in the bleach the whiter it will get until all the color is gone. Just remember it will not change color instantly. Let it dry over night and it should be white by morning. I would also suggest testing this on something less important first to gauge how much time it will need to be in the bleach. Rise it out then let dry over night. That is, unless someone else has another recommendation.