I purchased some of the Sterilite organizers from WalMart when I was in the classroom setting up in August. I made a label for themes and seasons and pasted it to cute cardstock (cut in half it fit perfectly!). This has held all of my thematic materials since the school year started. They fit perfectly above my kitchen area cabinets. I have three on one side and four on the other and could use more for some other themes! So I don't have an empty drawer during a theme, I put all of the centers materials (worksheets, laminated items, etc.) into one of two of my Target green handle bins.
It was so worth the effort to get them filled and up there this summer!