I don't usually post on this board, but I had to reply to this thread...
We (or should I say I) decided that our kids are old enough to start helping out around the house too as of last week. I sat down and talked to the kids (4.5 dd, 2.5 dd, and 7 SS) about how what they thought was reasonable for them to do. And got them involved in the whole process right down to making the chart up.
It ended up like this for their daily chores:
4.5 yr old will clean her room, straighten up living room and vacuum it using the little battery vacuum, and straighten up the shoes by the front door.
7 yr old (when he's here) will clean his room, keep toilet paper roll filled, sweep kitchen/dining room floor, wipe down kitchen table.
2 yr old straightens her room, and holds dust pan for the 7 yr old.
I made a chart for them with their names, and instead of writing out the chores we have a picture of a bed for bedrooms, broom for sweeping, a couch for living room, etc. Each of the kids picked out what picture they wanted, and the color of their name on the chart. At the end of the day they have to do their chores, and they can make the mark under the appropriate day. If they complete all the chores, they get 30 min of TV before bed. If we have to remind them, or they choose not to do them, they go straight to bed. Most nights its a race between the 4 and 7 yr olds to see who is done first, and they like to see who gets their marks for the longest. The 4 yr old is actually now teaching the 2 yr old how to pick up her room faster too, so she can get her marks before the 7 yr old, and they are not only helping me keep the house clean, but they are learning to work together as a team instead of fighting like they used to.
We've only been doing this for a week now and HOLY COW! What an improvement on both helping mom keep the house clean, and their attitudes about cleaning. If I happen to ask for help on something not on the list I don't get the whiny meltdown anymore...thank goodness! The 4 yr old is now straightening things up throughout the day in her room and living room so she doesn't have to do so much at night. ( she even disciplined dad about how he should set his work boots upright when he takes them off at night when he came home tonight...that was priceless!

) This has really worked for us and DH even made a comment on it tonight at dinner. It has become a routine for them now, and they just know they have to help mom out. It has really taken a lot of stress off me too with another coming really soon too. All in all everyone has said they like doing things this way. 4 yr old DD told me tonight as I was tucking her in, "mommy, i really like helping you now. you do more stuff with us then you used to, and i really like it." She's now noticed that I'm not so stressed about the house, and just by them doing a little to help out, it gives me more energy and time to play with them or even just sit and hold them like I used to. It made my heart just feel gooey when she said that.
Just thought I'd post...who knows maybe it would help in your sit too?