The cheapest is to take the Lynx #11 bus to downtown, and transfer to the #50 to the TTC. $1.25, and you need a transfer. Once you get to the TTC, you can use Disney Transportation to get to your resort. I"d suggest taking the ferry or monorail to MK and transfer from there. However,you cannot take luggage on the Disney tranportation. If you are traveling with backpacks only, that would be OK. If you have suitcases, from the ttc you can hire a taxi. It could cost 10-15$. Or, you could mail or ship your luggage to your resort. I personally think the cost of doing that is comparable to taking the Mears shuttle to your resort. If you do decide to take the Lynx it will take you about 1.5 hours to get to the ttc and you still haven't reached your resort. Mears isn't great but it is less aggravation than taking the Lynx. However, it too will take you quite a while to get to your resort because you must wait for the correct shuttle, and then it may drop others off first before you get to your resort. However, you did ask for the cheapest and for 2 people, these are the cheapest ways to get to DW. I believe it is 29$ p.p. return on Mears. Plus tips of course.