1. White noise "music" helps to focus on one task at a time - I like "Clean White Noise"
2. Forward your calls to Google Voice - it transcribes the voicemails.
3. Doodle.com saves time scheduling meetings.
4. The 99 cent iVocal app for iPhone lets you talk-to-text (email or SMS). Set up a contact called "dictation" with your email address and use that for voice notes.
5. The Blogger app is handy for blogging during a boring train commute.