It's entirely up to you as long as you select the Royal Mail postage options we will make it work!  

We charge you for Royal Mail 48 hour delivery as the base price.  

Many of our buyers include this in the price of the item and then tick the Free Postage option, or they charge a nominal amount to cover the postage and packing - for example £3.00.  

It is a good idea to include faster options as well, for example the Royal Mail 24 hour tracked delivery for those people that need it fast! We will charge you £2 if someone selects that at checkout, so you could charge £2 extra to cover your costs.