I toggle systems on and off frequently with quick keys, so to help me remember the quick key when I name a system, I give it a 2-digit id just before the system name and make the quick-key the same number.
Example: I named my Marine system to "37 Marine". And then I assigned a system quick-key of 37 to it. Now I just toggle it from the keyboard with .37
For systems less than 10, I precede the system name with a zero, but only assign a quick-key without the leading zero. EX:
My HAM/AMATEUR system is actually named "05 Ham". They system quick-key assigned to it, is just 5.
The reason I use the leading zero in the system name, is that it shows up first in the software lists and doesn't get mixed in later on.