However, other supermarkets have also been adding new rules for store access in order to help minimise the waiting times.
Morrisons has launched “speedy shopping” lanes so that those who are only shopping with a basket rather than a trolley can get in and out quickly.
It means that for every one shopper with a trolley, three customers using a basket can enter via the special queueing lane outside the stores.
There are also special checkouts designed for those who are just buying a few items, so that they can pay and leave quickly.
David Potts, Chief Executive of Morrisons, said: “It’s fair that customers doing smaller shopping trips should queue for less time too. Speedy Shopping will ensure that Morrisons stores will be more convenient for customers wanting a small basket of items.”