Another example, though I don't know which category it fits into, I guess investing time/money now to save money later, is preventative stuff. For example:
* regular oil changes on car to reduce engine wear
* mend clothing before problem gets big
* brush and floss regularly to prevent cavities
* exercise, eat fiber, etc. to reduce chance of health problems
* observe plants to notice when they need watering
* pay bills promptly to prevent late fees
* drive legally to prevent tickets and accidents
* wear a seatbelt/helmet, etc. when doing dangerous things
* install smoke detectors, GFCI outlets, etc., and test them regularly
* have a fire extinguisher at each exit (thus you're always between the fire and an exit)

There are millions of these. Not all of them will save you money--maybe someone totals your car before the engine could wear down or you never fall when you're roller skating. But if you do enough of them, some of them are bound to come in handy.

Another similar thing is buying insurance. You pay a little each month for a very long time to prevent having to go bankrupt if something really huge happens.