This article is brought to you by ShopHero by Seedly. All views expressed in the article are the independent opinions of Sethisfy.com. Read Sethisfy.com’s editorial policy. If I had a dollar each time a friend asks me, “what card do I use for this ah?”, I would have accumulated more coins than the number of credit cards I have (and that’s a huge number). While I am quite familiar with which credit card is good for what kind of purchase and can usually come up with an answer on the spot, most people probably need a bit more help. After all, they don’t obsess about credit cards on a daily basis as part of their jobs like I do. ShopHero is the solution that most people can count on. It’s a free app by Seedly which tells you which credit card to use for the highest rewards, whether you are into cashback or miles. Even better, it tells you...