Check out this post at Futuregirl's blog. She is Challenging herself to not buy any new craft supplies for the whole year and use up only what she already has. She has given herself a buffer budget of only $24 for the whole year to spend, what? Maybe she can inspire us to use a little more of what we already have and add a little less to our own stash, whatever it may be.
My real goal would be to have my crafting supplies as organized as hers so I could see all the stuff I have and get using it.