Tif -- with three in multiple sports, I'd have to quit my job! Luckily I have a great boss who I've worked with for 19 years. She does training courses and travels all the time, so I run her business. I had planned on being a SAHM, until we learned both kids have multiple learning problems. Thank God they are both bright children, and the largest school for bright children with learning differences is located in Dallas, so it's off to work I go (and a 50 mile commute one-way for the school)! I do put in around 50 hours a week, but I can work a couple of days from home, and I can start working at 6:30, so I can get off at a reasonable time to get them to all the practices and games.
I have two siblings, so I have renewed respect for my mom who took us all over for all the sports/activites we were in. I was a competition twirler, so we went all over the country for contests. I remember at the time thinking I was lucky to have great parents, but I didn't FULLY understand how great they are until I had two children of my own.