Depending on your email client, you may not need an entirely new account. Many clients will accept variations of your existing email address. For example, Gmail addresses ignore dots, so emails sent to "firstname.lastname@example.org" and "email@example.com" will both arrive at the same inbox. Your emails will also come through if someone sends a message to your email address followed by a plus sign and extra words—so messages addressed to "firstname.lastname@example.org" and "email@example.com" will both land in your inbox. Why is this helpful? It means you can enter a variation on your current email address whenever you sign up for or buy something, and then create a Gmail filter to corral anything sent to that address in its own folder. To create a filter in the web interface, click the Options button (it looks like a cog) on the top right, followed by Settings and then Filters and blocked addresses. Click Create a new filter, enter your tweaked address in the To field, and then decide what you want to do with these types of emails. You could mark them as read immediately, archive them, slap a shared label on them, or some combination of these actions.