Most of my listing have an express shipping (Royal Mail 24hr tracked) which can be selected on the checkout screen (bottom leftish) to replace 48hr tracked.
Royal Mail are prioritising this service and it is very little more. My experience with the service is that most parcels arrive next day.
Please note that if you would like more than one item from my listings, let me know and I can prepare a listing to save on shipping costs where possible.
Once you have bought an item I no longer have the ability to combine shipping under eBay's Simple Delivery system.
As can be seen in the photos, there is no box with these items.
Will be well packed for shipping.