OK, let me see if I got this right as I too am like to head for France at Spring Bank Holiday.
Fuses with diagram of fuses (especially one that is not the same as your car because the factory electrician had a bad day when your car was built)
Spare Bulb set
Toolkit roll (with tools - selection)
12v compressor (may be option with foot pump) - worry what if electrics fail?
Centre wheel spanner for wire wheels and hammer (for my car)
gaffer/duct tape (good for restraining the kids)
jubilee clips (Various)
ground sheet
grease gun
WD40
footpump
copperslip
fan belt
water, oil,
2 reflective jackets - kept in car under the seat say
warning triangle
torch
clean rags
rope
coil
full set of HT leads
selection of wire
selection of cable ties (bind up kids so they do not wander off)
selection of rubber grommets
a wallace
ptfe tape
jack
jack handle (so you can look threatening)
lump of wood to put under jack
sat nav
cell phone (could combine sat nav?)
michelin guide
Dellow half shaft
recovery insurance
optional items
wife
wife's stuff
2 children
papers for gendarmes to snort at
camping stove
and a load of plonk for when you are stuck by the roadside and invite passing motorists to join you in a wine tasting.
Couple of fold up seats would be good, cannot expect wife to sit on the roadside
Not too sure why I need a Dellow half shaft but I am sure will come in handy
Chris (open to further suggestions)