I haven't started any rewards for chores with Danny yet, mostly because he just enjoys helping out and it seems to be its own reward for him! We are still working on the basic stuff though: putting shoes away in the right spot, dirty clothes in his hamper, dishes in the sink, etc. He used to help with laundry, but he enjoyed playing with the buttons on our washer and dryer a bit too much, so I had to stop that for now
Eric does have extra chores he can help with around the house - laundry, taking the trash out, loading/emptying the dishwasher, that sort of stuff. We have a chart, and for every "extra" task he does, he earns money.