Hi H., I have a 2 yr old and an almost 5 yr old and I work 20 hrs a week, and am borderline obsessive about working out, but lemme tell ya...its hard to fit it in. Oh, and I too had the dream of having a perfectly clean house, dinner on the table, cookies baked, etc when I went down from full time to part time, yeah-only on TV I think! So I'm into endurance sports, (run, bike, swim) so what I do is get ready and the minute my husband is home from work (if its not a work day for myself), I'm off to the gym or outside to run and he is on daddy duty. I do this on Weds and Fridays usually. Then Sat morning, I'm up early for my longest workout of the week and home before breakfast is over. But I'm lucky, my kids sleep in somewhat...the 5 yr old is up around 7:30 or 8, 2 yr old would sleep until 9 if we let her (god bless her!). Then I work all day Sunday, get home for dinner, get kids in bed and unfortunately head to the gym for a swim and weights usually around 9:30pm...sounds crazy but I'm a night owl anyway, I could spend the time on the couch or being productive. Since it is such a quick turnaround (workouts fri, sat and sun) I do different activities, or work different body parts on successive days. Another thing I do sometimes is while my son is at school, I'll put my daughter in the bike trailer and we go for a ride (I pedal, she naps). I also have a kid carrier for your back that we used with my son when he was little for hiking, and have thought about sticking her in that and heading to the mountains for a hike, but she is pretty heavy and would probably want to get out and walk so haven't tried it yet, although its rated for up to 45 lbs. I just got the P90X videos but haven't tried them yet, for resistance training at home. I hear they are amazing. As for energy, once you get started you'll be surprised how much energy you have. I have a ton more energy now than when I never did anything. I look forward to workouts, it is my "me time" and most of the time long runs and long swims are really relaxing. I know that sounds crazy, but I'm not sprinting or anything, once your body is conditioned to it it really is a great stress release. Another thing is you could join a gym that has baby care, although like yours, my daughter is very clingy and would just have a cry fest when I tried putting her in there. Very traumatic for her. And lastly, a friend of mine does a thing here called "boot camp babes" where its a boot camp type workout at a park and they have people that watch your kids on the playground, while you work out several yards away. So they are still close to you and can see you, maybe you could find something like that in your area. Or also, there are lots of strollercise classes around, where baby stays in the stroller and mommy works out, I tried one when mine was smaller thinking it would be kind of a joke, but I really did get a good workout! Best time to get motivation is first thing in the morning, so you aren't burned out by the end of the day...and it'll put you in a great mind set for the day. Good luck and congrats on deciding on a more active lifestyle!