i think that if you're in a high-paying field, regular LV monogram is ok because every lady in the office probably has one and many probably carry it regularly, it's a pretty conservative and classy fabric. i wouldn't do any other logo, though, and i definately wouldn't do multicolore. if the place you're working isn't relatively high-paying, then i'd forgo it altogether. also, nothing slouchy, overly adorned, or sparkly. medium-sized, dark-colored, and structured is what i'd go for.