Don't wear high vis
Although on the wrong side of 50, I don't have any "grown up" outdoor coats: I find high vis safety wear to be cheap, warm, waterproof, has loads of useful pockets and the added bonus of making it harder for people to run you over if you are on the roads with horses, dogs etc.
However, I no longer wear it to the office. I'm quite happy to brave the ridicule, but when the fire alarm goes off on a client site or your own office you really don't want to be wearing high vis --- everybody thinks you should know what to do. In the end I had to abandon it and get soaked in the rain in the car park whilst people solicitously enquired about why I hadn't got a coat.
Also learned not to wear it to collect offspring from concerts: although it helped them find me, everybody else also found me and asked me everything before coming to the conclusion that I am the dumbest steward ever.