Lifehacker's got a hot pot full of Gmail tips, photography calculators, hacking up your smoke alarm and figuring out which caffeine supplement gives you the most calories.
• Lifehacker asks: what's your favorite video sharing site?
• Display both Bing and Google results so you can see which you prefer
• How to use the same Gmail account for multiple emails
• Make your smoke alarm wake up the deepest sleepers
• Golden Hour Calculator shows the best times for photography
• A 10-piece nesting cookware is something we'd buy
• Windows Live Movie Maker leaves beta
• How to crack an egg with only one hand
• Buzz vs. Bulge Chart compares caffeine to calories
• Enjoy homemade butter in less than five minutes. I could enjoy that much homemade butter in five minutes, but I wouldn't be here the next day
• Turn Google Voice into a Growl-friendly Mac App. Plus dock notifications!
• The Attic Playground