We waited in almost no lines in June by arriving early (right before opening) and using fastpass judiciously. For example: Got to MK at opening and were on the second Dumbo ride of the day. Got a FP as we passed Pooh on the way to the Raceway (not a FP ride), rode that with minimal wait and it was almost time for Pooh, so my husband took the kids over to see characters before the opening of the toontown area and I walked over to get us all FPs for Buzz. Met back up and we all rode the barnstormer twice before using the Pooh FPs. Rode Pooh and then it was time for Buzz.
AT AK, we marched straight to the Safari but I walked over and got FPs before we actually got on the ride, so when we got off, we could walk right back on. Then we got FP for ITTBAB before we went to see the Lion King show. By the time the show was over, we could see ITTBAB. Then we got FP for Kali River Rapids before we did one of the animal walks and saw Flights of Wonder. By then, we could do Kali.
So, no lines, but Mom did some extra walking to make it happen. If you have lots of adults, give the hoppers to someone whose feet don't hurt too much and always keep a fastpass "cooking" while you are doing other things. And remember you can get the next fastpass before you actually do the ride - you will see what time you can get your next fastpass printed on the one you are holding.
We were so spoiled by this approach that the one Sunday night we were at MK and fastpasses were all gone we were miserable waiting in lines.