A reusable shopping bag, sometimes called bag for life is a type of shopping bag which can be reused several times: this is an alternative of single use paper or plastic bags. It is often made from fabric such as canvas, woven synthetic fibers, or a thick plastic that is more durable than disposable plastic bags, allowing multiple use.

First introduced in the US in 1977, plastic shopping bags for bagging groceries at stores flourished in the 1980s and 1990s, replacing paper bags. In 1990s, governments in some countries started to impose taxes on distribution of disposable plastic bags or to regulate the use of them. Supermarkets increasingly discourage consumers from using disposable plastic bags and offer alternative reusable shopping bags with small prices, providing information on environmental damage associated with plastic bag. Because of these encouragements, reusable shopping bags are gradually taking place beside plastic bags. The shape of reusable shopping bags which are now becoming popular is usually different from what they used to be before the prevalence of plastic bags. The apparel industry promotes reusable shopping bags as sustainable fashion.

For using reusable shopping bags, the following retailers/grocers will award you with a discount per bag: