We faced the problem of where to hide our valuables when going swimming at one of the finest hotels in South Beach. We decided to hide our valuables under our towels and in our shoes. Though only a few feet away, & constantly watching, when we got back, our stuff was gone. Vacation nightmare comes true!
“There should be something you could put your valuables into so you don't need to constantly worry” - but there wasn't - so we invented it.