The answer should be folders can be used for retaining historical information, or for splitting up emails that still need addressing. For example, create a folder called ‘To be posted’ for email enquiries that require something to be sent out in the post. Then you can easily access all of these enquiries at one time to prepare the postal mail at the end of the day or end of the week, instead of searching for them throughout your inbox. If you’re keeping an email ‘just in case you need it again’ it should be in a folder, not in your Inbox. If you want to keep the latest jokes and recipes, place them in their own folder too or consider a separate email account for personal communications.