Organizing your photos has to come first. You have to know what's there and what's worth saving or using before you can really make any progress. And it makes the process of preserving your photos MUCH EASIER because you can find what you're looking for when you need it. Don't worry if this organizing step takes you some time--it is OKAY to spend three hours or one week or two months doing this. Just STAY ON IT until it's done. Ask for help if you need to, and calendar some time for this important first step.
UPDATE 2022: Watch my three-part Photo Organization and Preservation series! The first one especially goes over organization. The second gives solutions for storing photos and preserving them (and why they're not the same thing. The third is 10 strategies for consistency.
PART 1
PART 2
PART 3
See you next Friday for Step Two! (UPDATE: Get all 10 steps at the "how to catch up on your photos" tab.)