Franking machines let you pre pay for post, by using electronic contacts with the Royal Mail. You can also link them to business accounts which will let the one using it pay the cost before hand. Sending letters and packages will be easier, so you don't have to keep going to the post office.
Ebay now allows label printing, which basically allows ebay users to be much more productive. You can pay for your postage online, and print a labels for your packages.
A good place to buy franking machines that is in conjuntcion to this technology is pitney bowes franking machines. http://www.frankmymail.co.uk/
