Common sense for the veterans, but for the newer guys...
Put these items in a ziploc bag and place the bag in the pocket behind the driver or passenger seat
after you relocate the emergency front trunk release cable to the tow hook hole.
1) Tow hook
2) Lug key (if you have OE security lugs)
3) Spare ignition switch and small screwdriver for its set screws (make sure you get the correct switch)
An OBDII reader is handy and I keep one in each of my vehicles. This one was all of $12 and works just fine.
So many issues could be avoided if every owner did this.
If you've relocated the emergency hood release, keeping the other items in the passenger cabin seems redundant, but redundancy is a good thing.