For my DS, 8, and I to take an extra spur of the moment 5 night trip in September:
Airfare from MI: $122 (miles paid for most of the tickets but paid extra for seats, baggage)
Gas to airport, parking: $160 ( I own a gas guzzler and will be using the super close big blue deck parking right at the airport if I don't have DH there to help/protect us ;-)
Tickets: about $150 (upgraded to DVC discount APs from planning to buy 6 day hoppers for Jan 2015 trip with DGma)
MNSSHP: $120
Costumes: $30
Food $600 (about $320 of that will be from Disney VISA rewards and about $150 from normal grocery expenses).
Souvenirs: $200 ($50 to DS in the form of a Disney gift card before we go)
My son just mentioned one day how much fun MNSSHP was and how he wished we could do it again some time. Say no more... Now your speaking my language!! All I need is a vacation buddy and I'm off. We usually end up spending much more on airfare, but I checked the flight miles and happened to have enough to go over DS's long weekend off of school plus the AP thing made it sound too good to turn down! We didn't have a lot of choices for (DVC) resorts last minute, but a wait list for AKV Jambo came through, so we could cancel SS (one of my least favorite DVC resorts.