No MSM here, just chiming in. Karen, for me, having a toddler who so rarely slept and a husband who works (varying over the last three years from 5-6 days a week, 14-16 hours a day), I decided what exactly was really really important to me and let so much of the other stuff go. I have never tried to be supermom and don't intend to. I happen to like myself just they way I am.
Okay, so my clothes are never never pressed, and I do not buy things that need ironing. To boot: most of my clothes are really old, and my hair generally looks disheveled. My kids clothes are always neat but straight outta the dryer, and always knock about clothes, Target Levis and cotton shirts. We are big on clean, lotioned up and great looking hair for them and well, mascara and chapstick for me.
My house is really neat sans piles of clothes, folded but never put away and unfolded that just get's worn without ever being folded and well giant piles of books laying around. I tend to organize as I go and like to throw things away if they are not being used regularly.
Deep cleaning: those olden days of my grandmothers of deep cleaning being an all day affair; forget it. I am all for the easy and disposable, like Magic Eraser and throw away toilet scrubs. One quick swipe once a week and I consider it clean.
I have mentioned here many times that I do not cook much, rarely, well, any adjective that you choose. We do lots of soups, hummus, cereals, pasta, meal take outs from whole foods, healthy and easy stuff.
Organizing: I do that as I go and throw things away because I hate pack rat collection. There are some things that I am diligent about like putting our photo albums together and never leavning dishes in the sink but other things that I have little interest in, like dusting; could not tell you when I did it last. I like to vacuum and do it quickly every other day.
My goal everyday is to laugh, sing, dance and go out with my kids. We snuggle, read and tell stories. That is what really matters to me. With dd going to bed between 10-11, I get a little time to myself, no indulgence, a bath and laundry. During the day, she and B play or read together, so I get 30-40 minutes on the computer, rarely at once, usually in 5 minute intervals here and there. I do this - message board.
It is common for me to write in my journal and do my meditation very early in the morning, before my kids get up, which is about 7:00.
I will be a PTA mom for the fun and interaction with the kids, to accompany school trips and talk with the kids about museums, reading, hobbies, bug collecting, sports. I will most definitely not be favored for my cookies or my decorating or any assembly of cool crafts out of napkins and toothpicks.
The only thing that makes you supermom is when your kids think you are funny, and fun and happy and encouraging. I say, put less pressure on yourself.