Thank you all for the tips! I am learning to get better at saying no, but it is a long process. I wish it were easier already! I think since I am trying to improve on this, I am extra sensitive about the threat of boundary violations-- which probably isn't that helpful.

The 15 hours is spread over four days (two day set up/take down, two day conference), but I think that number was just flat out wrong-- maybe that was for people who are volunteering two days. According to the latest info they sent, we're putting in at least 7 hours on the first day alone. I'm alternating between feeling excited about going and wondering what the heck I just signed up for.

They do seem to be well organized in terms of volunteer management which bodes well- they are going to have us sign up for our preferred workshops and have emphasized that they want us to get something out of the conference. They've also thrown in more goodies, so even if I work 8 hour days, it will still be worth it