Before going ahead, check exactly what you are buying, and the details for payment, delivery and cancellation.

Look for a padlock icon at the bottom of the computer screen or on the right-hand side of the address bar of your browser to make sure you are using a secure website.

Check that the company has a geographical address and landline telephone number and note it down.

If the item costs more than £100 consider using a credit card for added protection if the goods are faulty or don’t arrive.

Keep copies of all e-mails or other paperwork, such as your confirmation order number and delivery dates.