So I was BEYOND tired of the penguin theme in my classroom. It was cute when I was "Miss Pepe's Penguins" but after 5 years of the same thing I was ready for a change of scenery.
Here's the Before (this is from A REALLY LONG time ago)

Here are the after shots.
I added table group signs that hang from the ceiling, and supply caddies to each group.
I changed up the homework board & the Mrs. Mahan board behind my desk.

I changed the calendar area as well
The file cabnet labels are fun
Our Job Chart and reminder magnets

My favorite is the bookshelf I painted. It used to be this awful bright yellow laminated wood, now it's a cool ocean breeze color

I also changed our outside board where we display all our fabulous work. It says "Look What We Did"
The last thing I did was take down our "data center" and put up an "I can" board. There's also a little basket to store their "I can" journals in. Here's a close up of the journals.