Earn 500 MB for every friend who installs the Dropbox desktop app โ and your friend will get 500 MB too. They can sign up for any plan and you get your bonus space the minute they download the app.
You don't even need to be an Octopus Energy customer for your ยฃ5 Electric Juice credit. Simply add a card to your account to pay for your EV charging. Often at a reduced price to that of the charger you are using.