Good to know about pencil lasting that long on those labels. I had been using a thick greasy marking pencil. It has lasts but with my bad handwriting, thinner pencil would make it more legible. I love Chris's labels too, they are a little harder to use with curved sided pots than the bendable metal ones. If I grew in the ground I think that's what I would use. There is no chance of my garden being toured by anyone aside from family.
I got a ptouch label maker after reading about them here. I had one in my Amazon cart forever and finally bought one. I may cover my lousy handwriting on the metal labels with ptouch labels when I have time.
I'm still trying to decide how I want to group my plants in my growing area. So far I'm leaning towards predominate color. Green is just green until its next to 'olive' 'sage' etc. Once I get my newer plants settled in I can reassess. Now they are in more shade until they root well.