Stixy.com is a fun site and could actually really help people's organization. I too have plenty of post it notes either on the cabinet on my desk or in the drawer. The site was really easy to use and being able to add pictures, notes and documents is a lot of fun.
I think this site would be a good tool for anybody in the library to use. It's great for organization or to just get your thoughts out there. If you got a lot of people involved it could be a great forum for opinions to be put forth confidentially. It would be great for staff or the community to be able to post their ideas about what can be improved about the library.
Here's a board I made for Ideas for the Library:
guest access: http://www.stixy.com/guest/113788