Eileen Donaghey, aka The Afternoon Tea Expert's rule of thirds, is one of the best tips you need when making tea sandwiches: one-third bread, one-third filling, one-third bread. Essentially, you're ...

Small, bite-sized sandwiches look best served ... then a damp tea towel. Transfer to the fridge. No more than 2 hours before serving, trim the crusts from the bread using a very sharp knife ...