> behave as if the value of their time is zero

I see this in my home kitchen and it has come to drive me batty. I think it's related to general innumeracy. Maybe the fear of numbering thing.

In the kitchen I've seen people saving butter wrappers to use the little scraps of butter on them to grease up pots and pans for cooking. That couldn't be a tenth of a cents worth of butter. Same with sauces and leaving only the last little table spoon in them. Why not use it all up and get a new one? I think it's also an inherited behavior back from Depression era days. Shrug.