knock, knock, open wide....see what's on the other side
A blackboard of course! You can buy blackboard paint in DIY stores, all I did was sand down the door then paint a couple of layers...... et voila....now I can bring out my inner teacher! It's actually quite useful because I have a memory like a sieve. What I don't recommmend however is using the rest of your blackboard paint to paint the kitchen tiles....it didn't really turn out very well, more shabby less chic!