Relabeling tubes???

I've acquired various sets of 12xxx tubes here on Agon.
Some sets are made up of different labeled tubes or from tubes worn off labels.
The boxes have the tube brand/type and test readings.
The problem is I have no recall/memory and will likely forget what tubes go to what boxes once I use the tubes in my gear. Furthermore I'm not familiar enough with tubes to identify Amperex, versus Mullard.... simply by looking at a tube.
So, would it be possible to place a small, and I mean small, sticker on the tube and write a few codes for easy identification
ex) A X7 would mean Amperex, 12AX7
ex) M U7 would mean Mullard, 12AU7

I want to ensure I do not compromise tube life. I'm thinking heat would not be an issue for 12 series tubes used in a preamp, cd player.

Comments please!!!!!!!