Some of these have already been mentioned, but I'll repeat myself for the sake of a complete list.
The Dole Whip counter never had much appeal to me in the past. Because of the hype on the Dis, though, I tried one a few years ago and was instantly hooked. On our most recent trip, I had 3 over the course of our two-week stay. It's a must-do in the MK, now.
Before the Dis, I used to make due with the not-so-nice-tasting water fountain water. Now I know you can ask any restaurant with a soda fountain for a glass of ice water, and receive it free.
Without the Dis, we never would have known about the device that can be checked out by visitors with visual impairments that provides visual descriptive services for many rides.
Without the Dis, we never would have known about Wishes fireworks cruises. Tried it for the first time a few weeks ago, and I think it was the most enjoyable thing we did during the entire trip.
Without the Dis, I wouldn't have known that I could use my Department of Defense civilian employee ID to purchase greatly-discounted tickets for everyone in our room.
Without the Dis, we probably never would have purchase Disney Vacation Club -- one of the best decisions I've ever made.
Without the Dis, it never would have occurred to me to purchase a 10-day non-expiring ticket with Water Park Fun & More options one year and use that ticket to get into water parks for many years. We would have continued to purchase a Premium Annual Pass every year to get the water parks.
Without the Dis, I never would have thought to ask to sit up front in the Monorail. And without the Dis, I wouldn't have known not to ask on this most recent trip.
Without the Dis, I would have thrown away many FastPasses for rides we weren't able to get back to before the end of the time window printed on the ticket. Now we know they're good for the rest of the day.
Without the Dis, I never would have known about the pre-purchase discounts for the PhotoPass CD, and never would have participated in PhotoPass at the parks. Now, some of our most wonderful pictures come from that CD each trip. We also get a PhotoPass album each year now, too.
Without the Dis, I never would have tried a backstage tour. We've done just about every one now. They're FANTASTIC!
Without the Dis, our dining would have been limited to the in-park options, and we would have missed out on so many fabulous resort restaurants.
Without the Dis, I never would have thought to ask about a Disney Visa discount at World of Disney. (Heck, I wouldn't even have had a Disney Visa.)
Ok, I could probably go on, but I doubt anyone is still reading this looooong post.
