Genius slipper design where you knit a short "scarf", fold and sew onto your bottom. Garter stitch extra chunky yarn about wide, and however many rows you need, then sew into the 2 layers of the felt bottom.
All Seasons Slippers Knitting Pattern - I caution those who wear knitted slippers! Apply a non-slip bottom or tread carefully; I broke a wrist after I fell on the kitchen floor while wearing some *slip*pers that were knit with love.
Crochet in Color: Lots of Free patterns. I always go with the smallest hook for baskets, bins, etc. More useful if you don't have to shape them. The only time I use a bigger hook is if slouchy is what the design calls for. Make Crocheted Baskets!