Bike (and other) Stuff:
I placed a sheet of thick rubber down under where the bikes go in the garage. This is easy to keep clean and prevents wear and tear on the wood floor.
I bought fork mounts for the bikes we have and mounted them by simply screwing them into the 3/4" plywood, right through the rubber mat. They work well. I do have to drop my seats, but my wife's can stay up. I also mounted a holder for a floor pump behind the passenger side wheel well. It holds it tight without any rattles. Handy.
I also installed a couple hooks above the rear door windows to hold the wheels. I also installed two eyes below the windows, which have shock cord - and - ball closures to hold the wheels securely. Simple and easy to use. And quiet - not rattles or squeaks.
My small tool box full of bike (and van) tools lives on the drivers side, just inside the rear doors. I glued some thin sheet silicone to the bottom so it doesn't mar the floor or move around. It never moves, although it certainly would in a wreck. Hmm, better think of a solution....
I also installed a USB charger with 6 outlets on the rear of the driver's side wheel well. This is handy for charging bike lights and cycling computers, while keeping them handy. I also attached a small screen mesh basket to hold such items while they are charging.
I installed a 12v outlet and USB power outlet higher up on the rear driver's side post (at the back corner of the van, in the factory plastic trim piece), so my wife can power her white noise machine (apparently I snore), and her cell phone. I also attached a small wire mesh basket to hold things on the back side of the bed.
I use a CPAP machine when I sleep. I hard-wired in a 12v adapter, so I can just carry out my machine and hose and plug it into the van. It is switched at the Blue Sea cigar lighter/USB port, so I can turn it off while not in use. It sits on the back edge of the counter while in use, and under my pillow all other times.
We each have a bedside fan (12v with internal rechargeable battery) attached near the headboard of the bed. These are really efficient and really helpful if it is hot. They work great. They have heavy duty clamps built in. The front one clamps to the wire basket above the galley. The rear one, I had to mount a garage door handle to the corner metal for something to clamp to. These are well worth having.
On top of each wheel well box, I installed some metal brackets so that I can hang the AC power cords from the driver's side ones, and the passenger side ones retain our folding camp chairs, screen house, folding table and folding grill.
I also attached shoe hangers to the back of each seat. These hold a surprising amount of stuff, and it is easy to see what is where and access it. The passenger side one is even accessible from outside the van, through the sliding door, or the passenger door (depending on which way the seat is facing). You can see part of the fire extinguisher that I mounted to the right rear of the passenger seat, below the shoe hanger.