Skipping audio track using headphones
There are plenty of solutions available on the Google Playstore -- just search it for "headset control. Having a Philips headset, I use their Philips Headset and am really satisfied with it: One tap = pause/play, two-tap = forward 1 track, 3 tap = backward 1 track. Long-Tap (hold it) = volume up, tap and then long-tap = volume down... Most of these apps follow that scheme, many also allow to customize it. JAYS Headset Control should be a good option as well, but didn't work to well with my Philips headset; so if one doesn't do as expected, don't give up but try another.