Space Bag are bags that compressess cloths and things with alot of air. One type allow you to press on it and the air goes out of one way valve. The other type allows you to use vacuum cleaner to suck out the air. It's very simple and ingenious idea. I'm not sure who invented this product. It was invented in 1996. They sell millions.
Problem: Limited storage space
Idea/Solution: Suck the air out and make the items compress/compact for storage, use one way valve
Site: https://www.spacebag.com/spacebag
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