How do they do it??

How does everyone manage to get so much done while I'm left floundering about and scratching my head (better time management you say....Yeah your probably right)
But what I mean is if I try to drop the requisite numbers on entrecard, I don't get anything else done. If I actually get some art work done nothing gets done on the pc.
Although with my new found information on ACEO's I have managed to do some work on those whilst putting the kids to bed but its only the initial Biro or pencil sketch that needs painting afterwards, but that's a definite saving of some time once they're asleep. But it can be a struggle if our daughter is feeling a little bit naughty and decides that I'm not really using the pencils etc. and she wants them.
And I need to buy a marker or a stupidly small paintbrush for the more fiddly pictures, because the ones I've got just don't cut it. And it doesn't matter if I've just bought them or how pricey they are the bristles ALWAYS start to deviate from the initial shape and blob paint all over where I really don't want it to go.
So how do you manage it all, the work and all the social networking/ promotions stuff and painting so little and finely because I want to know!