I inherited my grandfather's Coleman two-burner stove.

Compass

Slide-rules (if you can find instructions), pencils, graph paper, all that stuff I used to do math before battery powered calculators were affordable.

Seems that if it needs batteries, electricity, has a screen &/or contact buttons, when the tiniest piece wears out, it's junk.

The October 2009 Popular Mechanics (Self-Reliance Issue) has a good article on people discovering the joy of fixing what's broken, rather than just tossing and buying a replacement.

Part of my goal in preparing, is to be able to "make it" with a minimum of stuff which requires external supplies to continue functioning, e.g. batteries. The tough part is that there's a lot of stuff I don't know how to do.

Seems the more technologically advanced we get, the more artificial life becomes.

Reading this link really reminded me of my grandfathers.
http://journeytoforever.org/farm_library/device/devicesToC.html