I'm not a big fan of visible underwear in general. I try to avoid vpl, I don't buy tops that require unconventional bra strap configurations (although I'm on the lookout for a good cross-back bra, because I want to be able to buy racer back tanks), and I stare at a thong sticking out of a girl's pants in horrified fascination. HOWEVER, I wear a lot of sleeveless tops and tank tops, and sometimes a bit of my strap peeks out when I move my arms. Is this a massive fashion blunder, or no biggie? (I'm hoping for the latter, because I've been guilty of this for years).