Freelander, IMO, your 13 gallon bags limit your choices (ethically and practically). You could do like abnorm and take your accumulated trash to the nearest transfer station/dump, or you could use the little bags, which fit into gas station and grocery store trash cans (only one or two bags at a go, please).
There are loads of ways to thoughtfully reduce your waste, which would do both you and the planet good. Two ways that come to the front here are purchasing what items you can in bulk, and other items in the most minimal packaging available, and eliminating or greatly reducing your pets’ use of puddle pads by getting them on a frequent wee outside schedule. Oh, a third way- it doesn’t help the planet, but it does reduce your trash- remove all excess packaging at the store parking lot before you bring items into your rig. Drop the excess right into the parking lot trash cans.
I’m not as good at this as Spaceman Spiff (hella respect!). My normal trash output is one or two 4 gallon trash bags per week.