I really didn't do too badly because I read the Unofficial Guide cover to cover 3 times before my first trip.
My huge mistake was on my third trip. I was staying at the BC for the first time, couldn't figure out how to get back from DHS to the hotel after the boats stopped running, took a super expensive cab with no meter who drove us the long way around.
Later found out we could have walked. So dumb.
Double OUCH!
On my first ever visit back in 91 I completely missed WS at Epcot. I had no clue it was there, whether I didn't bother getting a park map or just wasn't paying attention, I don't know.
It came as a pleasant surprise when I found it a year later.
Register on WDWMAGIC. This sidebar will go away, and you'll see fewer ads.