1. Use a Parmesan cheese shaker for flour.
I wish I could take credit for this one, but I can't. I read it somewhere a while back -- a magazine or other blog. Who knows, but I want to kiss the person who suggested it. It has revolutionized my baking. I'm the kind of person who bakes, puts the dough in the fridge to chill and then puts the flour away. Then of course I need more flour to roll the dough out. My flour is stored in a back cabinet and is not easy to just 'grab'.
But now, I can just grab the shaker.
Bonus: instead of sticking my doughy hands in the flour, I can just shake, and wipe off the container later.
Shake, roll, bake.
Speaking of rolling out dough...
2. Keep a ruler in the drawer with your other utensils.
I can't tell you how many times I've had to go out and search for a ruler in my craft stuff because I want to be sure my pie dough isn't too thick, or the cookies are at least roughly the right size.
What's your favorite kitchen hint?