OK - I just have to add something to the makeup thing....
I always wear some form of make-up. I have to wear a little concealer - I like Prescriptives Virtual Skin or Camoflauge in the little tubes. Then I wear powder - something from Physician's Formula (I put it on with a brush, so it's really light). OH - I always put concealer on my eyelids - it evens out the color so I don't HAVE to wear eyeshadow, and it helps make the eyeliner and shadow stick.
For sweat-proof eyeshadow, Estee Lauder makes something called "Go Wink" in a little tube. It is very light and creamy - dries to powder. And shimmery (oooooh)...
Eyeliner is either Revlon Colorstay, Lancome Stylo Eyeliners OR Mac eyeshadow in a dark color (wet or dry).
Mascara - anything waterproof from Lo'real - but not on the bottom lashes.
That's it! Sounds like a lot - takes 2 minutes, and lasted all day in 90++ degrees when I was just there!
OH - last thought - if you have an eyeshadow that is the same color as an eyeliner, dab a little on the line and it sets the liner.
Also - I am very jealous of the LASIKs.