That guide looks sweet. So do their bash plates.
Not a 'show' and tell, but just a 'tell'. Something that I've been doing for some time now that has worked out well for me…
I put 2 CO2 cartridges, plus 2 tire levers up my seatpost on my DH bike. If you get a nut, you can thread the two cartridges into each other and then take an old tube and cut a small section of it and tie a knot in one end, then put the cartridges into it. Jam the levers into it, and it will keep them from rattling (this works especially well on my V10 since the seat tube is closed and nothing can fall through, but if you get the right tire levers, you should be able to get it tight enough that it won't come out until you need it to). Then you only need an allenkey and a co2 dispenser to get you out of a jam, along with that tube you zip tie to your frame of course. I also put a chain master link in the end of my handlebar behind the cap, held in place with duct tape so I always have a link when I need it.