cute little book nook reading center for kid's bedroom or playroom - just frame favorite book covers, hang letters to spell out read, and add low shelves for kids to reach books. would like to use the ikea spice racks that are super cheap for shelving.
In my opinion, having your guests address their own thank you cards is rude and lazy. Honestly put an address book out so they can put their address in there. That way you still have their address, birthday, and what not to send them cards.