Here's my normal routine. This changes some days, if I don't get up early enough, or exercise in the AM.
I enter before the kids get up--first, I go through vote requests, then enter as many instants as are on my list, and whatever dailies on my list that I can get through. If I get through all of them before they wake up, yay!
In the evening, after the kids go to bed, and after my housework and stuff is done (including exercise), I enter the rest of my dailies that I missed, and go through the new ones. On the new ones, I enter it right as I find it (especially if it's a one entry) because then I know I got my name in there and it's done! If I am short on time, I will not finish the dailies and just do new.
If I don't get to all my dailies, I will do this--use the sweep check date feature, and enter the ones that I entered longest ago (does that make sense?).
If I end up having extra time, I'll go into the 24 hour ones, or weekly ones. But I usually don't. I keep no more than 35 sweeps in my instant category and daily category, and only enter for those things I really would want. For example, though I would love a trip to anywhere in the world, if the trip is just for 2 people, I won't enter it, since I wouldn't be able to do it (babysitting issues). Trips for 4? Absolutely!
I actually really follow amyshulk's motto--enter it and forget it--and it has been OK for me so far! I don't win as much as others, but I have done just fine for my sake!
Good luck with your entries and I hope to see you post lots of wins!