I tend to agree in a wider sense (knowing that I could live basically anywhere in the world, for example, makes life seem short and that's stressful). But the

I tend to agree in a wider sense (knowing that I could live basically anywhere in the world, for example, makes life seem short and that's stressful). But the supermarket example doesn't work for me at all. Bottled water? Cheapest price tag, done. It's water. Most items can be reduced to this (tinned beans, frozen vegetables, etc) because it's inconsequential to me. Big ticket items like a laptop or a car - sure, that's a decision I'll have to live with for a long time, so it makes sense for me to think long and hard.