A.C.
I require that their rooms be picked up once each day. When the kids get home from school, they grab a snack, do their homework, and I require them to do their chores before going out to play with friends. This works best because by the end of the night, they are tired and ornery and more likely to put up a fuss about chores. Anyhow, I give them three jobs to do. Usually they are put away all laundry, pick up bedroom, and something else like take out trash, unload dishwasher, sweep, etc. I have 3 kids ages 9, 7 and 4. The 4 year old does jobs too but usually easier ones like put away any laundry that can be folded (she is too short to hang things up in closet), take mail out to mailbox, empty garbage cans, bring dirty clothes to laundry rm.
Cleaning rooms includes all dirty clothes down to laundry room, toys put in correct bins, garbages empty, clean clothes put away.Vacuum once a week. I do not require beds to be made; they have bunk beds and it is pretty hard to make up the beds. About once a month I will go in and help them do a deep cleaning and get rid of all the hoarded McDonalds toys, erasers and junk they bring home from school, etc. I do not care about the rooms looking like show rooms or anything, because by the next day they are going to be messy again, but picking them up daily keeps it from truly getting horrid and teaches them a bit of personal responsibility.