Five Things is currently what I do.
THIS IS A WORK IN PROGRESS - It's currently on paper.
I think I've been able to bring my various experiences to a time management system which works for me.
Unplugging is really important.
Issues I have to deal with ∞
A massive backlog of things I'm interested in.
Moving things between contexts
Updating old content ∞
I'm going to borrow a technique I learned from Penn Jillette, where each day he re-reads an old journal entry.
His method is pen-and-paper, but it applies even better to the blog concept. I'll have old blog entries which will go out of date, have broken links and will generally need love. Right now those blog entries are from a previous blog so they really do need to be checked.
The one-a-day concept would normally be checking yesterday, checking last week, checking last month, last year etc. In my case, I'll check the last one, then keep walking forward until they're all checked. I didn't do one post per day, after all.