If your Android feels sluggish, a few focused tweaks can make it feel surprisingly close to new again. A detailed how-to ...

Your phone is essentially a portable petri dish. Think about everywhere you take it-the gym, the kitchen, and yes, the bathroom-and then consider that it spends half its life pressed against your face ...

Deleting duplicates, bad shots and other unwanted files makes it easier to find the good pictures — and gives you room to take more. By J. D. Biersdorfer J. D. Biersdorfer is the Tech Tip columnist ...