Problems with Humidity

I so enjoyed our trip to shoot Gina & Ben's wedding weekend in San Juan, Puerto Rico. I tried food I had never tasted (Mofongo is AH-MAY-ZING!), roamed the streets taking photos of beautiful architecture and brightly colored walls, found our way to the famous fort (where it was 1 of the 2 days a year with free admission- yesss!), and of course had the honor of shooting Gina's rehearsal dinner, wedding, and day after session.
And that is when I learned the lesson of how dSLR camera's don't appreciate high levels of humidity. The night of the rehearsal the venue was open to the night air, it was really hot and the humidity was at 99.999 percent (okay, not really, but it was close!), and the lens started to fog over. Then my 40D decided it wasn't going to work. At all. I finally figured out what was going on, and avoided walking near the AC unit that just seemed to push even more moisture through the air (ah, what we sacrifice for getting the right shot!). I turned the camera off then back on a few times, and we were good to go. Here are a few more tips to help avoid to same problems...

1. Place desicant packets in your camera bag to help draw out any moisture.
2. Avoid changing lenses- this prevents humidity from reaching the inside of your camera body.
3. Give your camera time to warm up after in the air conditioned indoors.
4. Keep delicate equipment in ziploc baggies.
5. Regularly wipe your palms to make sure excess moisture is kept away from your camera.
6. I have also heard that a prime lens is better to use in a humid situation than a zoom lens- apparently the zooming action will just draw in air/humidity.

Photographers, have you experienced something similar? What did you do?