I just spent the last three days at Google IO, talking to people about how to speed up their websites. Most of the time I was at the web performance booth, debugging speed issues and answering questions. Quick thoughts from the airport on the way home:

• I'd never used PageSpeed Insights much before, which is too bad! It's an excellent tool for finding performance issues with sites and triaging them by impact.
• WebPageTest:Compare is really slow, but if you kick it off in a background tab before yous tart looking at issues in Insights then when you get to the "we have tools to automatically fix these problems" there's a great demonstration video waiting.
• The first two days we had a big TV on the wall displaying a "web performance" loop and laptop screens we were using for walking through sites. The third day I switched to looking at sites up on the big screen, after seeing another presenter have good success with it, and it definitely worked better. It's much easier for interested people to stop in and see what you're doing if you're looking at a big screen on the wall.
• While I also stand all day at work, this was much more tiring. I think some of the problem is that I normally stand barefoot (well, in socks) and this was in shoes.
• Meeting people who use and like your project is great.