Shoppers have become increasingly desperate to book home delivery slots during lockdown which are always in high demand.
Some have reported online deliveries to have been booked up for several months, while some supermarkets only release slots a week in advance.
But one shopper has created a handy new tool that notifies you when an Asda delivery slot is available in your area, the Liverpool Echo reports.
The tool, posted by a user on reddit, will frequently check the slots at your local store and email you when one becomes available.
Fill in your postcode and email address for the tool to work, which you can find here.
Asda is encouraging shoppers to reserve their online delivery slots for those who need it, such as vulnerable and elderly people self-isolating.
Speculation across social media suggests Asda releases its delivery slots each Sunday, with Twitter users explaining they have had success in securing one on this day.
Delivery slots are also available for Morrisons, Tesco, Iceland, Waitrose, Sainsbury's and Co-op.
Some supermarkets have prioritised delivery slots for elderly, disabled and vulnerable customers,
Aldi and M&S are also delivery food boxes. some shops have also partered with ubereats and Deliveroo to offer same-day shopping.
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