If you fancy a change from using Royal Mail or just want to have more options.DHL (previously Securicor) have for the last year launched an online service company called Parcel2go.com.
They offer parcel & packet services throughout the world at very competitive rates.
They sell stamps and packaging material plus offer multi drop deliveries & mass consignment collections and deliveries they can collect from your home or business.
They also offer you the chance to rent an US address so you can buy online in the states & they collect on deliver your purchases for you.
You can pay online with any UK debit or credit card and you can also pay with Paypal.
So why not visit their website