In no particular order.  List is provided so that in case you're thinking of doing the same thing, I (Ryan) may be able to offer some advice. If the item is linked, it is the same item I purchased and I recommend it.

- Replaced dash radio with a Pioneer FH-X720BT

- Added EEZ Tire Pressure Monitoring System, with Booster, to RV and toad

- Replaced original TV with Samsung 50" 4K Smart LED TV

- Added a Versahaul motorcycle carrier

- Added a Swagman bike rack

- Replaced the spring cartridge, ball valve, and seal for our Dometic/Sealand 210 toilet

- Replaced house batteries with four Trojan T-145 6V batteries

- Installed Flow-Rite RV2000 battery watering systems for house batteries (also need Hand Pump)

- Replaced the Magnum Battery Temperature Sensor

- Replaced both roof vents with Cyclone vents

- Upgraded both Fantasic Fans (2) with 7350 Upgrade Kits

- Added Fantastic Vent Covers

- Added 50 State exterior map

- Weber Q1200 grill with cover - adapted for use with the coach's low pressure LP port

- Custom made grill platform for use with our exterior kitchen

- Added 16ft Flagpole Buddy to rear ladder

- Added a Garmin RV 760LMT Navigation to the dash, then replaced with Rand McNally RV Tablet 80

- Replaced the brakes on two of the Power Gear electric leveling jacks

- Replaced the Auxiliary Start Solenoid

- Replaced the original KVH R5 satellite dish with a Winegard Playmaker (X1) (roof mounted)

- Added a Winegard Pathway X2 for umbilical use when we're parked under tree cover

- Added a three chamber dispenser to the shower

- Replaced the entry door electric lock actuator

- Replaced the original shower head with an Oxygenics Body Spa head

- Added Smart Faucet water savers to kitchen and bathroom sinks

- Updated all interior lighting to LED (M4Products.com)

-Replaced Dometic NDA refrigerator/freezer 1402 drip tray defrost heater element

-Replaced refrigerator drain lines

-Replaced thermal switch for refrigerator vent fans

-Fixed SHURflo water pump to stop city water from back-flowing into the fresh water tank (I now carry a new, spare, replacement pump)

-Replaced the deteriorating amber porch light lens

-Replaced the auto transfer switch with a Surge Guard 40350-RVC with a 40299 remote monitor

-Replaced front and rear air conditioner's intake grills with Coleman-Mach 8430-6301 Chill Grills

-Added Camco Clamp-N-Carry rack to the rear ladder with a Flip-N-Lite 6' step ladder

-Added a Magne Shade windshield shade

-Replaced original accordion blinds with MCD day/night roller shades and custom valances.