Crazy long to do lists stopped working for me a long time ago. Every morning I get to work I write down the things I have to get done in the day, and I don't let myself write more than what fits on this pad. 7 items of the stuff I HAVE to do.
This is today's list. I did get every item done by the end of the day. Yes, I have check voicemail and return calls as 2 separate items. Believe it or not, check voicemail is not on my to do list every day. And some days "return calls" is not going to happen until the next day and I know this, so I don't put it on the list.
This doesn't mean I don't have a "brain dump" file on my computer that I basically keep a running list of everything that eventually must get done. But that is sooooo overwhelming to look at on a daily basis and doesn't set me up for daily success.
I'm all about day by day success these last few months.