I can only speak from personal experience, but I very seldom make a separate trip to the grocery store unless it is absolutely necessary -- I stop by it on the way home, or when I'm running some other errand. I also go once every two weeks or so.
Granted, this isn't for the purpose of saving money/gas -- it's because I dislike travel time in general. It feels inefficient, like my time could be better spent doing something else. I walk at a pace that is a near-jog for most people, when I'm walking alone. I drive fast (which I realize does waste gas). I'll take a route that's twice as long if it gets me there 10% faster.
I do, however, think in terms of "it will cost me $x in gas to attend this event," and mentally add that to the event cost in my head. I should break it down further and also include wear and tear on my car. Just haven't had the motivation to do the necessary research for that.
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Granted, this isn't for the purpose of saving money/gas -- it's because I dislike travel time in general. It feels inefficient, like my time could be better spent doing something else. I walk at a pace that is a near-jog for most people, when I'm walking alone. I drive fast (which I realize does waste gas). I'll take a route that's twice as long if it gets me there 10% faster.
I do, however, think in terms of "it will cost me $x in gas to attend this event," and mentally add that to the event cost in my head. I should break it down further and also include wear and tear on my car. Just haven't had the motivation to do the necessary research for that.