Lifehacker: As if Gmail wasn't powerful enough, you can find all sorts of goodies and extra features in Gmail Labs. The list is pretty massive, so we've narrowed down our 10 favorite labs to help increase your email productivity.
But you can still go back to the old layout if you prefer.
Overall, this looks like a decent UI update for people that use multiple Google services.
Spam runs rampant on Gmail, but you have options.
