$0.10 is nothing...here in Hawaii we get charged $0.25 for a
paper bag. We also are taxed for
any food/beverage item that is in a plastic container. I actually wish disney would charge for those plastic bags that bleed blue dye everywhere. We always bring our reusable disney bags (and buy more if they're new designs)!
WDW tried to do away with them a few years back. It did not go over well. I visited WDW during that period. We bought a shirt and our choices were: wear it, buy a $1 bag, or carry it in our hands. Option #3 doesn't work well in a theme park. We bought the bag, but the whole week we overheard MANY complaints. The idea was not popular on WDW forums either.
[Truth be told, an hour after we bought the bag, mashed the shirt down into a zippered coat pocket, then folded the bag into the other coat pocket.]
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To answer OP, I visited WDW in Jan. The parks were not crowded, but the MK park hours were a bit short compared to busier times of year. That's another way WDW influences wait times.
One thing we saw all week: At park opening FoP, 7DMT, Rise/Slinky, and Remy all had LONG waits, but the rest of the rides had almost no wait until a few hours later. Universal had something similar: Hagrid's has a long wait in the early AM, but then it dropped WAY down. Still a solid wait, but nothing like the early morning. By mid-day though the waits were more evenly distributed. The price of G+ was low (AK at $17), so we didn't get it for MK or AK, and didn't miss it. (Easter week, I would buy G+ for MK and HS.)