Our friends have all given you suggestions already
but I wanted to mention something different...with a collection the size of yours, it would be a great idea to attach a name tag directly to your plants, either in addition to or in place of, the tags in your pots.
If the worst happens and stuff gets knocked around, at least you'll know what plant you're picking up afterwards
I keep saying I'm going to do it but the thought of tackling the job with so many chids is just too daunting