I have 4 kids. 11.5 yr old girl and 3 boys aged 10, 8 and 5.5. I also have VERY strong opinions about this very topic. You may disagree, but I can tell you what works at my house, and as long as I'm here and am responsible for making responsible, hard working adults out of my children, this is the way it will be.
I absolutely DO NOT believe in paying for chores that involve basically chipping in to do their OWN cleanup or their OWN messes.
My kids make up 2/3rds of the family. They make 90%+ of the mess. Period. They can clean up their own messes - the good Lord was gracious enough to give them strong and healthy bodies, so there are no excuses.
They are expected to keep their rooms clean - it doesn't have to be perfect...my rule is nothing on the floor but furniture, and vaccum 1x per week.
They are expected to do dishes as needed/daily and vacuum/clean up the kitchen at least 1x per week. I cook. They eat, they can clean up the mess.
They are expected to clean THEIR bathroom - I do supervise them here to make sure they are safe with the cleaning products and not going overboard, but they do the work. Again, if they choose to pee all over the toilet, they will be the ones to clean it up. Amazingly, since this rule was instituted, the boys 'aim' has improved 100%.
They are expected to pickup, dust and vaccum the common living areas. Again, most of the mess here is theirs - they can clean it up.
They are expected to bring me their dirty clothes. I do the washing and fold/sort the clean clothes into bins - one for each kid. They then are responsible for coming to get their clothes and putting them away. Even the 5 yr old...
I also ask my oldest to help with mowing, and all the kids are expected to chip in some with cleaning up and feeding up the animals, although I do most of that since they are techincally MY critters. As the others get big enough to ride the mower, they will take turns with the mowing. Right now I do one week, and my DD does the next.
And, how long does all of this hard work take? If they keep up with it when I ask... about 2 hours tops per week, not counting the mowing. I don't think that is anything like child slavery or anything.
Interestingly enough, since I've gotten stricter about this issue at my house, my house stay 75% cleaner than it ever used to. They have learned along the way that it's easier to avoid making the mess in the first place, OR to clean up immediately when they pull out toys, etc than to have to clean it all up at a later time.
I just believe it is waaaayyyyy wrong to PAY children to clean up after themselves. Paying them also has you wind up with the problem that some have already posted - that they think once they have a 'real' job they don't need to do their chores anymore at home. WRONG. They should be expected to clean up their own messes. Who is going to pay them when they grow up and have their own house?
In my opinion, paying them for cleaning up after themselves just teaches children a sense of 'entitlement', which is a MAJOR problem with today's kids. Nobody pays ME to clean up my own house & messes. Why should I pay THEM to clean up the messes they make?
I might add, that my parents didn't pay me to clean up after myself either, OR give me an 'allowance'. When I needed money for something I just asked.
I tell you what - that made me think long and hard about whatever it was before I asked for money for it. Most of the time my parents said OK. Sometimes they said NO. Amazingly enough, somehow I managed to turn out OK without a pocket full of money earned by doing stuff that I should have been responsible for anyway OR without getting everything I wanted.
I have decided to follow their example and we do not give allowances, either. My kids do not want for anything. I provide them food, clothing, shelter and plenty of extras too. If they want to save up money for something they can save up gifts they are given throughout the year, ask mom and dad for a contribution. If they have been responsible in doing their duties around the house (note, DUTIES....not chores) then we are much more likely to pitch in towards whatever they want to get.
They will learn the value of hard work and taking care of themselves if I have anything to do with it, and I don't think that expecting them to clean up after themselves is too much to ask or some sort of torture for them. It's what we ALL have to learn to do for ourselves at some point or another.