links for 2007-03-30 March 29, 2007 TripSync: Simple Business Trip Planning and Management An interesting tool for travel planning. (tags: travel tracking planning) Presentation Zen: Can limitations and restrictions be liberating? Interesting take on Theory of Constraints (tags: constraints productivity presentations) Intelligent online task management | Smartsheet.com (tags: spreadsheet collaboration productivity web2.0) Power plug ID labels (tags: design productivity) Hack Attack: A beginner's guide to Quicksilver - Lifehacker (tags: mac apple quicksilver)