I wanted a chore system that was reusable and didn’t cost me anything.
I went digging and found some 9-pocket page protectors (like people use for sports cards).
I think went around the house with my camera photographing chore areas or tools (vacuum, swiffer, whole rooms, each of their beds, etc.).
I made cards (same size as sports cards) with the photo and chore like “Vacuum Den” or “Swiffer Kitchen Floor.”
For awhile, I filled their pockets. Oh, each child has one page protector. One pocket has a card with their photo and name.
For our 3 oldest (13, 12, 9), they have to do 8 chores so their page protector is filled up. Our next 2 in age have to do 5 chores. Our youngest just shadows at this point. She is 2.
Anyway, they now choose the chores and put the cards in as they finish.
We do pay our children a weekly allowance, but they pay us (out of their allowance) when they don’t complete all chores. I keep up with it each day, but keep it very simple. Either you do all the chores and therefore don’t pay us for doing them for you, or you don’t.
After breakfast, they all go to do chores for 20 minutes or so while I clean up the kitchen (well one of them will sweep/swiffer the floor; I wash up any dishes).
At this point, they usually have at least half of their page filled up.
Around 4 p.m. I remind them Daddy will be home soon, and that they need to complete chores.
We have been using this system about a year now and it works for multiple ages and requires no writing on my part, mostly no nagging, and it travels even (we camp a lot).
One HUGE thing I did is each day of the week (Monday-Friday), I have a kitchen helper. Monday is my oldest on down to 2nd to youngest on Friday. This person helps me prepare meals for that day, and they also get a treat: game time with Mommy in the afternoon (one-on-one).
HTH