Twins offer the extra 2 side compartments, which are nice convenient additions to the rear storage compartment if you have rear beds. We store our sewage hose in the holder. In the rear bumper, I store a 50' collapsible water hose, clear plastic sewer hose elbow, rubber gloves, Lego Levelers and Anderson levelers.
I have always stored my 50A power cord, surge protector, 25' extra 20A power cord extension, 50' self coil freshwater hose, extra Lego leveling blocks, 50' coax cable for Weboost antenna, and a towel for wiping down the cord & hose, all in the drivers side storage bin under our twin bed. Power and water hookups are on that side along with the coax connection so handy when hooking up/tearing down. I have found the 50A to be a bit difficult to wrap/coil up when it's cold outside, but if you wrap the 50A cord in a "figure 8" while storing, it works/stores in there just fine.
On the curbside storage, I have a set of tools, cordless drill with leveling jack socket, the awning tool, some straps/bungies, an 8' rubber/plastic wrapped SS cable and lock for securing bikes or generator, additional lights for the awning, and small backup first aid kit.
Rear compartment is pretty big; we store couple Yeti folding chairs, portable cocktail table, 2 extra folding chairs, fishing gear, and 9x12 outdoor mat for under the awning.
Truck bed I have the propane powered Honda2200, a 20# propane bottle, propane fire pit, propane Weber 1200 bbq, folding Weber bbq table,
12V VIAIR compressor, 20' propane hose, Coleman dual burner propane stove, 11x11 Clamshell screened room, 30' telescopic Weboost antenna pole, tool box, BlueOx hitch socket with braker bar, ball grease, spray can of silicon/electric lubricant, paper towels, camp supplies, and a folding table.
Also now bring along a ICECO Electric 42qt cooler on longer trips for keeping drinks cold. I power with either outlet in the F250 or use my RiverPro portable power station which will run the cooler for 2.5 days and can charge back up in about 1.5 hours.