Shopaholics like Kim Kardashian probably carry a lot of plastic in their wallets. To make the most of their shopping expeditions, they should consider a retail credit card. If Kardashian is loyal to a particular store, it's worth looking at a card from one of her favorite retailers, which is a great way to rack up store discounts. Otherwise, Kardashian would do well to pick a co-branded retail card that offers points on purchases made at a range of her favorite shopping locations. But while retail cards can save money, they can also be a dangerous double-edged sword because they just might burn a hole in Kardashian's pocket. So if Kim wants to continue keeping up with the other Kardashians she would do well to keep an eye on her monthly statements and set a budget for any retail therapy.