I agree with everybody!
And it's all in the choices you make, really. When DS was a little baby, people were asking me how I wasn't tired and went to work and looked like nothing happened. I would tell them that I get good nights sleep by breastfeeding and co-sleeping with my son, so I don't get up every 2hours.
Every once in a while I'll feel like a bad wife/mama, when the laundry is piling up, and I'm sitting on the couch watching tv... But you know what? The laundry can wait
I usually do it on my "Friday" night (which is Sunday lol), for some reason at the end of my work week I just feel like cleaning, putting some music on, and be silly with my son, all in the same time!
The exercise... I haven't been exercising, but when I lost 20 lbs last summer, I did it with my son. Pushed him in the jogger stroller or did the 30 day shred (20 minutes!! It'll kick your butt!!) while he was napping.
The little things you need to do to yourself (like take a nice bath, shave, go to the hair dresser) do become treasured (ans rare lol) moments, that you just need to take the time to do. I hadn't had a haircut in a year, I kept complaining to my husband that I needed one badly, so on one of my days off, he said let's go uptown! I'll take the baby to the park there, and you go to your favorite hair salon! Then after that we took the bus to my favorite clothing store I hadn't been to in forever, he took our son for a stroll while I was shopping, it was awesome!!! Because I could have done all that by myself, but as a working mom of a toddler, I want to spend my little time off with him and when I dont, I feel extremely guilty! So that's a way to do it all