I work in a professional office, and as a non-profit executive director I meet a lot of people (who often give me money!) and like to look professional and current. Those days I wouldn't wear jeans. But in my small office, we have a biz casual policy, and in fact today I am wearing dark denim straight leg jeans, cuffed up 4 inches, a v-neck tee (not cotton, but more fluid), black blazer, neckerchief, pearl earrings, pearl and gold bracelets, and leopard flats. Chic (if I do say so myself... and two staff complimented me this morning too!) I feel very good in this ensemble. I said to my office manager that I need to remember this combo (take pictures maybe? doh) so yes to jeans in the office, when I don't have meetings, but always with professional and trendy aspects (today's trendy is the neck scarf, cuffed dark denim)