Yep, I feel like this sometimes too. But be consoled, I did the Triple P parenting skills program recently and they said it's actually more important that you stop what you're doing and pay attention to the child for a couple of minutes when they come up to you throughout the day, than it is to schedule big slabs of 'quality' time together. The other big thing they emphasise is setting aside some time (it only needs to be 15-30 mins) for family time at the end of the day. That's usually cuddling up to read a story or playing a game/talking with older kids before bed time.

BTW ladies who claim to live in hovels...In my experience it's usually the neater cleaner ladies that complain about their hovel houses - the really slobby messy people don't even notice what they are living in!!