Even though there are times at work when I feel really hacked off with everything (especially my female, no kids, career motivated boss), I know that it's easier to be at work than trying to do a million and one things when you have young children at home. My wife used to be a childminder and on some days it was pure chaos with three of our own plus others in the house. I'd ring up and hear what sounded like pitched battle going on in the background - and come home to help tidy the Somme ready for the next days battle.
My DW is working her months notice at the moment as her secretarial job (which should've been 25 hours a week) has grown to her having to cram 50+ hours work into those 25. She has spent countless (unpaid) hours at home trying to keep on top of it all
AND look after our children. In the end it was just too much and something had to give. So she starts a school admin job after Easter working 2.5 days a week and she won't have to worry about childcare etc in the holidays or being given mounds of work to do at home. The major downside is that we'll get royally mugged by travel operators now as we'll have to go away whilst the schools are off. Grrr. Bloomin' rip off merchants! Even though her salary will be greatly reduced by this change, at least she'll have 2.5 days a week at home and be there for the kids during the holidays. Money isn't everything and I'll be happy if she's not as stressed as she has been over the past year.
What annoys me most though is people that don't have children and seem to think that having them
doesn't make a difference. But it does! A few people at work (my current boss is the worst) have no idea how difficult, stressful and time consuming bringing up a family can be. I'll admit that I have the easier end of the deal as I can walk out of the door before the kids are dressed and taken to school - and I don't get back until after 6pm. Even though I'm away from the environment for most of the day doesn't mean to say I'm not thinking/worrying about what's going on. Occasionally I'm late to work as something happens at home with the kids that I need to deal with - not getting dressed / fighting / being stroppy etc. Sometimes I have to leave early to get them from the childminder, or take them somewhere etc. This can be frowned upon from a work perspective - but what am I supposed to do? Walk out the door and leave WW3 behind me for DW to clear up? Leave the kids at the childminder / miss childrens medical appointments just to keep work happy?
No matter if you stay at home or go to work, being a parent isn't easy. No one gets formal training for what must be one of the most daunting, hard and utterly frustrating jobs anyone could ever do. No one applies to be a parent, some do it by mistake, others through choice but all of us take on huge responsibilities when we have those little bundles of joy - but we love 'em, no matter the cost! So, even though like Natalie I've had a nightmare of a day (one weeks work out of the window when the business changed their requirements

), it'll all be forgotten when I walk upstairs and get a kiss and a cuddle as I tuck up our pride and joy, Emily, Danny & Howard.
I feel for your Nat - get a PG brew on, grab a good book and forget about the world until the alarm rings in the morning!