When was the last time you backed up the photos on your phone?
Unsubscribed from a mailing list? Unfollowed people you are no longer friends with?
Throughout the course of everyday life, we accumulate digital detritus - files, emails, subscriptions, social media accounts - dragging it around behind us like a comet's tail.
But how does living with all this digital clutter affect us?
"Digital clutter is overloading our brains," said Dr Libby Sanders, an expert in organisational behaviour from Bond University in Australia.