3 - Gallon Bag
I use these [3 Gallon] bags often because of the durability of the plastic and heat durability. What I have used them for is for photography. When it rains outside, we still have to shoot. With the size of the bags, you can wrap one over a strobe head ad well as a power pack. I even use them to wrap over the connection of an extension cord. This way, the lights stay dry and the connections also stay dry. Shooting in the rain is possible even without water proof heads.