Originally posted by Geoff_M
Yes, technically the mugs have always been only good for the stay during which you purchase them... but in reality chaos reigns at the Coke machines. Use whatever you want: old mugs, 7-11 mugs, camelbacks, cups from other amusement parks, etc. etc. Your chances of being stopped is close to nil.
3 points if I may:
1) I used to say the policy was what I'd read. I was of the "1 mug - 1 resort - 1 visit" school of thought. I've made a 180 degree turn (based on #2 and #3 below). Although my chances of changing anyone's mind may be "close to nil," I just have to try!
2) Has anyone ever been denied a refill? If so, then it's possible they were embarrassed and humiliated. If they were told at the point of purchase their mugs were good forever, there's a chance they may never return to WDW. That would be a potential loss to Disney of many thousands of dollars (see #3 below). If not, then that fact tells us what the real policy is. It doesn't matter what the signs or a website says if the reality of what goes on in the food courts of WDW is different, in my opinion (of course).
3) The mugs are a business promotion. Disney is typically trading a week's worth of soda and coffee for thousands of dollars in park tickets, resort accommodations, food and souvenirs. Disney will make that trade any day of the week and twice on Sunday! I believe Disney is thrilled when you return to WDW and re-use your mugs.
I don't know if this helped, but I'd say re-use the mugs!

That's my story and I'm sticking to it... until additional information becomes available! I'm going to WDW soon and will hopefully buy refillable mugs and use them in other resorts. The purpose of my experiment* will be to give WDW employees every chance to make me the first Disney guest to ever be denied a free refill.

If it happens I know my Mom will be so proud!
* I'll have to leave the "re-use mug at same resort on a different visit" experiment to a future visit or to one of you interested readers who may be scientifically inclined and sympathetic to our cause. Long live the mugs!
