Writing on the wall

Ugh! I want to paint several walls in my future home with this whiteboard paint from Ideapaint!

No more worrying about your kids drawing on the wall. Just wipe it away! And when they get older... you can do math problems, brainstorm, from wall-to-wall, floor-to-ceiling.  I think Rustoleum also sells something similar.  Prime with "magnetic primer" and you're good to go to sticking magnets and writing on your walls!