Hi,

Maybe start a sticker chart with stars and if they help clean up they get to put a star beside their name. If they get 5 for the week then they get a certificate at the end of the week for being a BIG helper. Ignore if they don't help and if they cry for not getting a sticker tell them why. Trust me they will want to get what the big 3.5-year-old gets. Ignore if they don't help and don't make a big deal. But make a huge deal if they do. Kids at this age are testing their boundaries big time don't fold or they will win. Remember you’re the boss! LOL Good luck!

http://www.aaacertificates.com/membe...ome_And_Family