My son is 3 and a whirlwind. He goes to pre-school two days a week for 2.5 hours. I try to get my housework done during school and then when he comes home and naps I sew for a little bit. Or I sew in the evenings after dinner. My husband doesn't care for that too much but, oh well. I need my sewing time.
I like the idea that the previous poster had about having Daddy take the kidlet out for some one on one time. We may have to get that started here.