<< I'm wondering if there is some way in the UK to have a letter/package sent to a post office and then pick it up? Because if i order it a couple of days before i leave for the UK, then it should be there by the time i arrive. >> Paul. I believe you can activate a 'poste restante' facility. However almost certainly there are forms to be filled prior. Whether they need your actual physical presence in the PO I don't know. Since I visit the PO every day I shall ask. www.royalmail.com
The other variable to consider is the rather poor record of ontime deliveries that 7DS have, apparently. Kind regards Peter