One of our favorite ideas we picked up from an old Martha Stewart Baby magazine was a quick how to for making a portable growth chart. It's quite simple, sturdy and affordable, plus has the ability to be taken down so your memories of age and height can travel with you no matter where you call home. Click through for details!
We tried to find Martha's reference for this idea online, but it's far enough back ('02) and from a magazine that is no longer printed that we had a rough time, but we still wanted to give credit where credit is due!
Martha suggested securing yardsticks end to end on the wall by using the small holes in the end of each stick. When you leave you can simply unscrew and take with you! If you're looking for an even less invasive idea, try using 3M Quick Release sticky tabs on the backside instead. It will cost you more upfront, but there won't be any patching when you leave.
It's a great solution for renters who might relocate often and still want to keep those memories when all is said and done.