You can put patterns in (certain) page protectors and use dry-erase markers to mark on the page protector. Then take dry-erase cleaning solution and wipe the protector free.
Knitting/Crochet/Crafting/and Related Product Review Blog: KnitPurlGurl
"Yarn stashes insulate the house."
"Just one more skein can't hurt."
- from Knitticisms