Travelambo Bifold Multicard Wallet The Travelambo Bifold Multicard Wallet ($15) is currently one of the bestselling items on Amazon, and for good reason. It holds a ridiculous amount of stuff — the design includes 15 card slots, one ID slot, and two long zipped slots that will fit cash or even an iPhone. It also comes in 20 different colours. Image Source: amazon.com Travelambo Bifold Multicard Wallet $15 from amazon.com Buy Now