Most of us have a geek friend at home who can be relied on to fix our ailing gadgets. But what do you do when your computer breaks down while you’re on the road with it? In NYC, Mac users can head to Tekserve, the city’s beloved Mac repair shop. People swear their PowerBooks and IMacs get better just from all the good vibes in this place. Tekserve will also make a house call or come to your hotel — $240 for the first hour — but you’ll have a better time and save bucks by going directly to the shop.