Well, DS3 doesn't do anything yet. He played Tball last Spring, but that's mainly because his brother did, we aren't signing him up this Spring, and we haven't done swim lessons yet........I'm going to try teaching him in the community pool over summer.
DS10 had piano for free last year, but they aren't doing it this year, so I will be looking into finding a teacher for that. It costs about 100 bucks for football in the fall, and then another 150 for equipment, snacks, fundraisers and entrance fees. He wants to take Tae Kwon Do.......it'd be about 50 a month, not including uniform, or he could take fencing for about the same price, I haven't mentioned it to him yet. He doesn't need swimming lessons any longer, just practice and strenght building now. He gave up baseball this year.....just getting too dangerous at his age with 70 mile per hour pitches now!
Our main thing is finding the time to participate.