Crochet yarn around a wreath to keep the yarn from slipping. (make sure the stitches are at the back unless you're adding something else) Also a tutorial for adding a pretty crocheted edge to the wreath.
A common problem in amigurumi: you want to crochet something striped, but there's this funky looking stairstep "seam" running diagonally where you change colors. How do you get rid of that!?.