Just in case you haven't heard about the Cyber Showcase, here is a link to get you started! This was the brainchild of the amazing Laura Candler so of course it is top notch.
Basically, you can download 15 great products from 15 Teacher Pay Teacher sellers for free, today only. There are products for literature, math, vocabulary, and more! Over $85 in free products. This is a goldmine if you teach grades 3-5. Even if you don't, you may find some things you can adjust to fit your needs. So head on over!