Using repeater call signs doesn't work for me because sponsors often have multiple repeaters with the same call sign. Most of my radios don't show both the name and freq so I have to devise some name that reminds me of what it is. Example: a local club has a linked UHF system for severe weather coverage throughout NE OK and NW AR so I use the town name for each frequency, i.e. TULWX for the Tulsa input to the linked system, BVILWX for the Bartlesville input, etc.
On another club's primary repeater, they have regional inputs that use different tones to access the remote receiver so I use the club initials, shorten the freq., and a directional reminder: TRO88N = Tulsa Repeater Organization 146.88 North input tone or TRO88S for the south tone.