Froyo has become quite the thing in the valley as of late and my favorite has always been Mojo! Never have I gone there and have gotten treated poorly, it's always clean and the fresh fruit is always actually fresh! The only location around Phoenix I haven't been to is the Biltmore location but what I just said goes for every other one as well!
Now if decently priced and delicious froyo wasn't enough, they have insanely priced froyo on Tuesdays! All you have to do is keep an eye out for their secret word for half off your order! Follow them @MojoYogurt (don't forget to retweet). It's also great for a cheap date if you feel like chatting in between bites; I know my girlfriend and I have done it.
Go drop by a Mojo if you want a great treat that you don't have to feel guilty about! I love it and have never been disappointed!