Over the past year, we've all turned to lateral flow tests (LFTs) every time we've felt poorly to make sure we're not experiencing a Covid symptom.
These small plastic cartridges, which have been free and easily accessible, allowed us to test ourselves at home and find out if we need to stay at home to prevent the spread of Covid-19.
However, from Friday April 1, lateral flow tests will no longer be free of charge in England for most people - with the exception of the over-75s and people aged over 12 with weakened immune systems.