Ok, about the dog grooming. What kind of dog is it? Some breeds need grooming. I guess you could do it at home, but you'd probably make a huge mess and cut the dog 6 times with the clippers. Dad and the kids are excited about the new dog and saw the grooming trip as a fun outing. I thought you said money was better lately? Also- $60? I remember paying $75 for a shnauzer grooming in the 80's! Cut Dad some slack.
Also, your appearance. I'm trying to be delicate, here, as I understand society hands women some very confused and I think ill-intentioned messages about these things, but even *especially* after you've had kids, your appearance is still important. Yeah, I know what society says about the eclipsing priority of those kids, but ignore society on this one. Your appearance is still important. I may get shouted down on this one, but I think it comes somewhere between a roof over your head and the 2nd or 3rd lesson or activity for the kids.
If you're in that tight of a spot financially, cut the cable connection. But keep cutting your hair at a salon. Keep hitting the gym. And occasionally, oh, half-yearly or so? Go to Nordstrom. If it's been awhile since you shopped, go see the personal shopper, it dosen't cost extra. Nordstrom is pricier, but the quality is much higher, so your wardrobe pieces don't wear out. Buy classic, so they also don't go out of style, and you're set.
Your kids benefit from having a happy Mom. Now go forth and make appointments.