Active Self Protection

Question to Anyone: What categories of magazines do you have? (Looking for ideas.)

I currently have two carry mags, six range mags and one dry-fire mag.
I was thinking of dying my mags according to categorical use.

As a matter of due diligence, I researched options which might already exist, and found magazines with a red base "plate", which have the added feature of a 20-round capacity instead of the usual 17.

I'm considering just outright using two of those for my carry mags.

Which leaves me with an engineering dilemma: Is there some other category I might not have thought of where my two soon-to-be-extra mags might be useful?

I know people who use different base plates for mags. I just write on the bottom of them in colored sharpie. I used to use colored tape. Anything to mark which is which.

I have a primary carry magazine and a backup staged in case something happens to my carry mag. All others are range mags and can be used for dry practice too.