Anyone Dread Weekends? for being a MFPer?

I dread the weekend. Don't get me wrong..I don't dread it as far as work goes because it means I don't have to go there, and I get to spend time with my daughter, boyfriend, and other friends. However, during the week, I am more on a consistent schedule with my eating and exercising, and on the weekend, it goes to ****! I have the luxury of having a very small gym accompanied with a racquetball court at work, and I'm the only one in the whole 4 story building that uses it. On the weekends, I try to get up early before everyone else does to jump on the Wii, but as soon as my five year old gets up, she wants to play, and is completely insistent on it to the point where I cannot keep my focus to "play" my games, which are all fitness games.
Then as far as eating, I'll eat in the morning, but since we're out and about, I end up skipping lunch and eating only dinner and that just messes up my whole routine until Monday. And since I absolutely hate water, I force myself to drink it and usually can swallow about 6 glasses on average a day cuz my desk is right next to the water cooler. But not at home. I do have a Culligan Purifier thing on the faucet, but I'm not motivated like at work to get up and keep filling my bottle like at work especially since I am either not here, or playing hide and seek or Barbies or something with my daughter. And of course, part of my problems on the weekend have to do with mom guilt cuz I know my daughter just doesn't always want to do a million sit ups with me, or understand when mommy has to "exercise", so that usually means I end up quitting early, etc...