Flat Snake

What is the easiest way to loosen a new snake skin wallet?
I recently bought a rattlesnake wallet. Unfortunately, the product was not pre-folded. After having sectioned the wallet into 3 parts, it continues to pop up and not lye flat. I understand it takes time for this to occur, but is there a faster way (e.g. heat, pressure…) other than constant use?
Fill it with the max amount of cards/bills it can hold and shove it under your mattress and leave it there for a while.
Miss Tina Suede and Snake-Embossed Ballerina Flat


