Dollar store mentality
When you believe that things that are a dollar or less should be bought in bulk because they are so cheap.
My Mom went out and bought 20 pairs of star shaped sunglasses because "someone would definitely get a dollar worth of fun out of them". She has a dollar store mentality.
My friend Paty used to say "If it's for free, it's for me....but the dollar store is good too."
My friend Paty used to say "If it's for free, it's for me....but the dollar store is good too."