Don’t draw on the walls! Just pick up the MeasureMe Stick, a playful take on the traditional ruler that you can use as a growth chart for your child. Made from bamboo (and includes the cool steel pegs for hanging).

This would be a great way to use the 6 ft. vintage Westcott ruler that I’ve had for years, I can’t believe I didn’t think of this before (I’m not sure how I ended up with it in the first place).