We’ve got to admit that Square is a niche product, but it’s just so cool – the ability to accept credit cards on your iPhone, Android smartphone or iPad while on the go is totally liberating. Their new Square Register turns an iPad into an intuitive cash register with easy set-up. While Square card reader itself is limited to plastic, the app can wirelessly connect to a receipt printer and cash drawer for dealing with cold hard cash, too.

Check out Square’s lineup at their website - Free, minus 2.75% of sales.