just put it on the list of other stuff you do and dont neccessarily like doing (cutting the grass, cooking, washing the car, going to the in laws, whatever those things are) until you get your mojo back.
option two: take the live stock out and drop the light cycle to next to nothing. I have a nano like that, the thing looks prestine and all I do is top it off once in a while and ghost feed a few morsels once every two weeks when I'm feeding the other tank. its sort of cocked and loaded waiting on me to do something with it. been that way for probably over 6 months.