DeLonghi Magnifica superautomatic espresso machine. Absolutely necessary for me.
Knife. If I got my pants on, I got my knife on me.
Can opener. I would starve to death without a can opener.
Samsung Note 3, unlocked and rooted, with OCPN. I have 4 of them. Great GPS
hat. Spare hat. Extra spare hat. backup extra spare hat. sack of replacement hats.