Been thinking about what to pack etc..... Trying to keep it to a minimum so we are not lugging big suitcases around. Is the Mega store much like a Walmart where could just go across the street and pick up alot of the incidentals so we don't need to pack them. Like sunscreen bubba keg type containers a couple straw cowboy hats Booze Towels etc....
But the sunscreen is much more expensive (as is a lot of other toiletry items). You might be able to find some sort of insulated mug but maybe not a bubba keg - I have heard more than once of people looking but not finding. And alcohol - prices are ok, but if you have a favorite brand it may not be available...
Sunscreen prices are the same as what you pay in the US, we always buy it there so we don't have to check a bag and delay getting to the resort...
YES, YES , YES, pack lite, and buy whatever you can at the Mega. Bonus if you can only bring two carry ons, as the person before said, you can get to resort faster.
The Mega also has guys selling tour packages for trips to the Arch. We got our tour for under 1/2 of what the guys at the hotel were selling it for. They started higher but came down quickly when we were going to walk away.