So as the financial secretary at church, twice a year I print out reports and provide to the entire congregation. I often end up mailing them out since I can't catch everyone at the church and some don't attend regularly, so I always address them and put return address labels on them. I have a drawer full of return address labels. They're the free ones that non-profits send you to try to get you to donate more. Most of them come in my maiden name. I always figured the address is the important part, so it doesn't matter if my last name is wrong.
After the first of the year I was handing them out again. When I gave a friend of ours, who's very active in the church, his letter, he asked when I'd be getting new address labels. I explained to him my thinking on it and asked why.
Apparently every time I do this he gets a handful of questions from people asking if we're really married!