No one’s gonna argue that pump soap is more convenient, but bar soap is so much cheaper. It’s kinda like that whole “cereal tastes so much better when you pour milk on it instead of water” argument. It’s true, but in the end mom was right—cigarette money doesn’t grow on trees and sometimes sacrifices must be made. But apparently bar soap doesn’t have to shrink down so small that you can lose it in the bathtub and not be sure if it dissolved or… went missing. Stack Soap is designed to let you combine the old slivers of soap with a new bar so you can begin the “infinite cycle of soap.” Each bar has a shape missing from it (don’t freak out, they’re not trying to gyp you!) so you can attach the leftover sliver of soap to make one complete bar.