I keep a calendar only to write down their names on days they ate (or offered and refused). I don't feed on exact schedule for my adults anymore. It can range from every 10~16 days. The only one I am feeding every 6~7 days is Togetic, my 280g little girl.

Otherwise, I just check them every day for pees and poops, check their temps once a day. I only handle them when I feel like it, whichever snake I feel like. They don't need to be handled regularly to keep them "tame", since they are all naturally tame, even if I don't touch them for weeks (except for Drizzle, because she's crazy lol).