is a small backpack!
My flying site is 8 minutes brisk walk from the parking lot, so with a backpack I can carry 2 or 3 models plus all my kit.
I did have to rationalise my kit though. The first thing I realised when I started flying CL again was that I never ever fix at the field. I always bring it home and fix it properly/in comfort, so that immediately reduced the amount of tools I needed to bring (props, plugs and nvas excepted). As things stand I have a small sandwich box for my tools, spare plugs, spanner, glow lead, tweezers, fuel tubing etc etc etc. An even smaller box for my tacho and stop watch. An old screw top candy tube for flicking stick (APCs - I like being attached to all of my fingers), fuelling syringes, glow start leads, screwdrivers, stooge pegs and occasionally props (if they fit). An empty CD container for lines and some towels for cleaning.
About a quart of fuel (its actually a 1 litre plastic can), even if I'm flying 60s that's 9 flights for me, which is more than enough for an average mornings flying (for me).
I use my kneeling mat as extra padding on my back and it has revolutionised my flying. Grab and go.
Handles/stooge in pockets, as well as refreshments, logbook etc
Chris