With the Zellers stores closing here, you had to wait it out to get items you wanted at really reduced prices. The original price was over inflated on lots of things. So many people just see the "SALE" sign, and buy. Some things were less expensive at regular prices elseware.
We don't have good coupons, or stores that will double them here, so knowing your prices, not being brand loyal, and watching the sale cycles are all important to do.
I base my "buy" price, on the lowest sale price, that I have "noted" for a particular item. We have stocked up, and bought out of season for so long, that I seldom pay full price for anything.
I think the razor blades dh uses are getting scarce. We may have to switch brands on those. They're important, cause he is his own barber keeping the three hairs off of his bald head.