And I also keep at least a few pads or tampons in my car too in case I the "thing" would start unexpectantly, so I don't have to stop and buy them somewhere where it might be not on sale.
I hate when I run out of something and have to buy it and it's not on sale in any of the places I usually go. or even worse if I also don't have a coupon for it. But I have a huge stockpile, so that doesn't happen often, maybe twice a year or so.
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