End caps, those nicely-arranged displays at the end of each aisle, can be a great spot to find a sale. Sometimes.
They often feature “twin” items, like peanut butter and jelly or chips and salsa. You’ll probably end up paying less for just one of those items.
The displays can also be home to items discounted because they are nearing their expiration dates.
You can avoid the end cap trap by tracking the prices of things you buy most. That way, you’ll be quick to recognize a good deal.