I found another blog today http://menumakermom.blogspot.com/ with lots and lots of ideas on planning.
If I'm going to use the crockpot, then I need to plan ahead as I need to turn it on by 9 a.m. or so. But if I'm just baking or broiling something, I often don't decide until that morning what I'm going to make for dinner that night.
Leave me a comment. Let me know if you plan ahead or if you decide in the early afternoon what's for dinner that night.