I don't know about you, but a Chicago Manual of Style totebag is one piece of swag I could definitely use. So I took a few minutes this morning and answered their call for people to fill out a survey about how I use the CMS.
Mainly, they focused on a few select sections of the style manual (which is pretty much the standard style guide that book publishers follow). First they asked whether I had ever used the section. If I said no (which I did for the section on grammar--that stuff is usually factory-standard for editors), the survey skipped to the next section of interest. If I said yes, it wanted more specifics about which part of the section I used. Then it wanted to know my job title and contact info. I gave it all to them because I want that tote bag!