We live in a mobile home park now and of course every trailer has a number on it. We pointed this out to E and she names them off now and then as we drive by. Today we went for a walk and started out by trailer #1 with the intention of walking around the whole park until we had seen all of them (about 100 I think). We ended up stopping at ours, #46, but it was a nice walk and we'll probably do the rest another day.
Here are some pictures we took while we were out.