I make lists. A daily journal about what's on for the next day. Easy to keep things organised. I also cut up projects into parts so they aren't so daunting. Equate it to: build a house. That's the big overwhelming goal, but if you chop it down to its parts, its easy.
Grocery lists -- I'm useless. I write them and forget them on the kitchen table. Haven't starved yet, tho. And the neighbours always have Creamo.