Went to WDW solo last year and came up with some new "secrets":
1. Going to WDW solo is way less stressful, and thus more fun, than when going with the family.
2. Epcot used to be my least favorite park. Now I really enjoy it -- but I suspect it's because I have a glass of wine in Italy and France, a beer in England, and either wine or beer in Germany. I also like World Showcase's food options more than the other parks.
3. Watched parades in MK and HS and realized I can skip them during future visits and hit a few rides instead.
4. Merida is not a princess, but she and Rapunzel are my favorite Disney heroines.
5. WDW may not have the "thrill rides" of Universal, but it's still my theme park of choice. Spending two days in Orlando next month while DW is at a conference. Was going to spend them at Universal, then realized that other then HP (which I really like), there was nothing else that drew me, so decided to go to WDW instead.
6. Still haven't had a Dole Whip but an ice cream sundae at the Plaza Ice Cream Parlor in MK is a must.
7. I've no real interest in meeting characters (did that a lot when my kids were young) but I enjoy watching the kids who get all excited when they do.