Good ideas for slippers. In Russian, but diagrams look useful.
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.
Ravelry: Pääkallot liekeissä pattern by Satumaisia silmukoita
Ravelry: ElinPelin socks pattern by JennyPenny