Twitter Door- have a laminated strip for every child and they get time to tweet about something they learned, liked or happened during school that day! Gets them writing and ties in something they're probably already interested in!
A paper towel holder with page protectors attached with binder rings. Classroom reference for a substitute? How about an easy access dictionary for a writing center (Add reference tabs for each letter of the alphabet)? What about a place to display student work?
I decided to make some anchor charts for addition and subtraction key words. I got the idea from Jodi at Fun in First (she has really great ideas... if you haven't checked out her blog, you NEED to). Here is the addition chart (I love how it is shaped like an addition sign): After downloading both documents, print on card stock, arrange nicely on addition/subtraction shaped posters, and laminate.