I'm an attorney. I don't particular want to have a signature scent with clients and colleagues. When I wear cologne at work, it's very muted and always a scent that is generally well liked (MI and GIT are my two workhorses). When I'm meeting with clients, I very rarely wear any cologne. In court, I sometimes wear VC&A, but only a spray or two, just so I can barely smell it.
For work the most important thing is not to offend. On my personal time I can wear more challenging scents.