Mind on Multitasking
Kathy Sierra writes a wonderful blog all by itself with thoughtful and interesting short essays on how to create passionate users. The current entry on multitasking your brain is as good as ever.
If you want to get more done, be mindful. If you want to have more time, be mindful. Mindful means one thing at a time.
Something to put on my 43 Things list: be mindful