We just got back from an 8 day stay and I know that I might get looked at negatively for this but we used our fastpasses starting around 10, and then pushed them up back to back (10-11, 11-12, 12-1) with one another so that we could have the option of getting a 4th FP or more for attractions that we really wanted. We ended up with 7 fastpasses at MK yesterday and the day before we got a FP for both TT and Soarin at Epcot. I found that many times an attraction that we wanted wasn't available at the kiosk at that time so I would choose most any attraction and then play with times on my phone and we always managed to get what we wanted for our extra one throughout the day. But there was definitely some strategy involved. This was my boys' first trip though so we really wanted to experience as much as we could. Now we know our favorites and our trip would look different next time possibly.