The dedicated sun worshipers make it look easy. Nice, even tans, not too dark, and without harsh lines, are really the Holy Grail of summer. But avoiding strange tan lines, or lines in awkward places, shouldn't be too difficult, should it? It's not that hard to be aware of what you're wearing when you're out in the sun. It's not like it's a new phenomenon. But the sun is not forgiving. It caught these folks unaware, and look how they get to spend their summers.