Step 1: Wear sunglasses. No, seriously, it's not that hard.
Step 2: Don't stare directly at the sun. That's just basic physics.
Step 3: Learn to recognize the difference between a fly and a spider. Trust us, your eyes (and your therapist) will thank you.
Wearing Sunglasses 101 for advanced techniques.
Spider Vision: The Ultimate Survival Skill for those who've mastered the basics.
Advanced Topics in Eye Protection for the truly masochistic.