If we travel with food I cut on my Fridge the night before, so it's good and cold.
Sometimes I buy food at nearest Walmart on shorter trips...
Kind of nice to have cold drinks and sandwich items cold when you travel.
I have a bunch of 20# tanks, and try to always keep full ones on my trailer, and a couple of partially full tanks on my patio for home use.
A case of beer buys a lot of good will from sanitation employees who pick up grills and take the tanks to their transfer station...
I'd rather buy them beer than buy propane tanks.
Not to mention the fact that my garbage is always picked up and never a mess when they leave. :)