Pastry tip!
I've discovered that instead of using a knife to trim the pastry the best gadget is a pizza wheel. I never cut the rolls into individual pieces until I've forked the front of the sausage roll and then run the pizza wheel along the edge to remove excess pastry and keep them all neat then egg wash before cutting into the whole roll to make each sausage roll and placing them onto a baking tray. A Pizza cutter is great when making biscuits too, you get such a nice straight edge.