places i travel are a bit remote! so full tool kit incl sockets, grips, usual screwdrivers, hammers etc, scissor jack, large allen key and bit sets, worklight, tyre removal / repair and wheel changing stuff ( yes i can remove a tyre from a rim at the side of the road!), gaffer tape, tie wraps, jump leads, lubricants, antifreeze, filters etc, spare cable, spare bulbs, relays and fuses etc, specialist stuff like vw pipe clamp tool, vac / pressure tester, multimeter, code reader, and vw e manual and parts e book on laptop. i have to say that over 35 years i have actually used most of this in anger on the road, so my minimum list. i also carry enough food and water for several days. i do carry gps, mob phone and recovery card, but have only used the card twice out of convenience, once was just to get a lift to the parts shop for a t2.5 clutch cylinder in germany! oh and a folding shovel cause when you are in the sh.t its only the depth that varies!!!
i admit this is probably extreme for a bit of local touring and camping, hope this helps.