Psychology says people who save shopping bags inside shopping bags aren't cheap, they may simply see value that others overlook

Psychology suggests that people who keep shopping bags stored inside other shopping bags are not necessarily being cheap. More often, the habit reflects future-oriented thinking, learned routines, resourcefulness, a desire to stay prepared, a sense of control over everyday life, and values shaped by family habits or environmental awareness.

Raccontata daeconomictimes.indiatimes.com