I have my young(less than 3 years old) snakes split into two "groups" that get fed on 4 day scehdules on different days, and the adults are fed every 7-10 days. First advantage is that I don't have to run home from work and feed everyone all at once. Plus, this way if someone(other than the adults) refuses, there is usually someone who will eat it if offered. Ever seen a fully grown California King take a "fat" little pinky mouse...? I have and it does look as bizzare as it would seem.
If all else fails I just toss it to the cat(she's a mouser anyways, probably better quality than what she catches too).