I've not been making much lately, and at my last place I actually drew up a spreadsheet of a couple dozen staple groceries that I buy regularly and noted their

I've not been making much lately, and at my last place I actually drew up a spreadsheet of a couple dozen staple groceries that I buy regularly and noted their standard prices at the four stores nearest to me. It was quite useful in deciding when to shop nearby and when it was worth making a longer trip.