something to consider is that certain todo's require the right location or context, for example if I'm at the office and it occurs to me to pay the utility bill, that would go on a "home" todo list.

Additionally, some todo's have different timeframes than others. I try to think of things as short term/immediate, medium term/this week, and long term/nextweek-before I die.

I'll occasionally pick things of the long term list and cut them down into an action I could do immediate or this week, for example, get Anna karenina from the library.