I have a small multitool on my keychain and have for several years; it most often comes in handy as a bottle opener but the small pliers, knife, screwdriver, and wire stripper have all been used.
I have the entire road system of North America as of three months ago downloaded as about five gigabytes of data on my phone (yay micro SD cards) which comes in handy when driving through rural mountains.
A charged car battery exists in the trunk of my car for jumpstarting (and also for running my big computerized telescope out in the field, which is how I ensure it is kept charged, because it is dual use).
Mostly for hobby purposes but also for contingencies, I have built a portable solar-powered lithium-iron-phosphate battery pack that charges from sunlight at 25 watts, can store 200 watt-hours, and can discharge upwards of 100 watts at either 12 volts DC or 120 volts AC.
I have a small multitool on my keychain and have for several years; it most often comes in handy as a bottle opener but the small pliers, knife, screwdriver, and wire stripper have all been used.
I have the entire road system of North America as of three months ago downloaded as about five gigabytes of data on my phone (yay micro SD cards) which comes in handy when driving through rural mountains.
A charged car battery exists in the trunk of my car for jumpstarting (and also for running my big computerized telescope out in the field, which is how I ensure it is kept charged, because it is dual use).
Mostly for hobby purposes but also for contingencies, I have built a portable solar-powered lithium-iron-phosphate battery pack that charges from sunlight at 25 watts, can store 200 watt-hours, and can discharge upwards of 100 watts at either 12 volts DC or 120 volts AC.
+1 to offline maps before travelling. An offline map nearly killed me and saved my life as well. Would suggest having it.