Does anyone own this bag? I was thinking about getting it, but wanted to know more about it - like, do both straps stay up on your shoulder or does one slip off? Maybe someone can post pics? I do wish there were more than 2 colors, though. Maybe I'll e-mail them and ask if they have plans to make it in more colors. I'd probably be going for the saddle color, though, because I so rarely use black handbags. Any help here?