Use a magnetic board and favor tins to organize small things vertically. I'd like to put my spices in the tins, to save space in the kitchen! This link includes lots of great craft storage ideas, including using closet organizers for craft supplies.
Focusing on the guest room - keeping it light and calming, with white/very pale wall color, iron bed frame and overall gentle and inviting. This image is a bit too shabby-chic, but the basics are there.