When I learned Old Pochmann corners, I memoed in pairs. Essentially, each set of two targets was a 3-cycle. If the two targets happen to be an easy commutator, I use a commutator instead. That is now "intuitive" for me.
I think that the whole point of learning the full exhaustive list of comms...
For corner permutation, we can have the cycle repeated over and over again (cycle)
ie corner (135) would be C-E-G-C-E-G (or do-mi-so-do-mi-so)
In my head, I'm hearing this really quickly over and over again, about two times per second. Not easy to forget.