What's your most prized school items?

I found out today we might have some extra money coming from a PTO fundraiser.  Woohoo!  Now my dilemma is purchasing meaningful, classroom changin' products.

At the start of the year I shelled out some major moolah out of my own pocket and purchased:

• A Wireless Printer (helloooo blogging ideas!)
• 2 color ink cartridges and 2 black ones (I could use some more already...)
• Book Bins for the kiddos
• Book Baskets for my classroom library
• iHome Dock (result of me selling my graduate school books back to Amazon...)
• Otterbox ipad case (which makes the ipad not fit in the above-mentioned ipad dock.  thankyouverymuch)

Other classroom rockin' products that <3:

• The Daily Five
• The Cafe Book
• Words Their Way
• Lucy Calkin's Units of Study for Primary Grades
• All the recommended mentor texts from Units of Study
• Math books- I would guess that I have over 100 math books in our class library
• A document camera- iPevo $70 on Amazon
• Ipad
• My iphone (yep, I put it in the hands of the kiddos)

I would love to have:

• Audio CDs and Books for the CD player
• More organizational stuff... like to keep our weekly leveled books in
• An interactive whiteboard (ha!) or Mimeo 
• A cutting machine 
• A closet makeover (my closet is about 1/4 the size of everyone else's on the hall.  Stupid AC unit or whatever the heck is back there taking up all my closet space!)
• More fun teaching tools

So, what do you recommend that I get?  What are your favorite classroom items?

Also- what are your students' favorite apps?  Anything I need to get?