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!!!!!!!
Why not just use a black Sharpie, fine point marking pen? Mark the tube on the glass itself, somewhere that you won't be likely rub off(very top/bottom). ( ) I mark the order of my octets of main amp power tubes this way(bottom of envelope), just so I'm certain of replacing them in the same positions, in the amps, anytime they're removed.
A small label will not comprimise the Tube . Heat from the Tube will cause the adhesive to stick to the glass envelope , but can easily be cleaned .

Most vintage European Tubes have etched Codes on the bottom of the glass . The top line is the Tube Type Identifier . The second line contains the Factory Identifier along with the Date Codes . A web search will provde the needed site for this info .

A magnifying glass may be needed to read these series of Letters and Numbers . Being etched into the glass means it can't be rubbed off .
Hi Pdspecl

For labeling tubes I just grab a sharpie like what Rodman states and write carefully on the glass itself where I won't touch them frequently. For 6SN7 type tubes I would put a small label on the base.

Check out the Brent Jessee videos on how to identify various rare 12AX7 and 12AU7 type tubes.
Use a Sharpie and a simple number code, perhaps 000-999. Then simply maintain a notebook with the full description of the tube with that number. Simple, easy, and gives you all the information you need or want...

I prefered to put removable labels on the back of the gear that the tubes were in that corresponded to the tube positions, but anything that works is fine.

Realize that, if you are buying tubes with no labels, the boxes alone do not speak to the authenticity of those tubes. A bit of research on the engraved codes and the plate and getter structures of the tubes that you purchase can be a very good thing. An investment in a tube tester is not a bad idea either. Unfortunately, everyting on the net is not what it seems.