If you have to wrap and chill your sandwiches Konditor & Cook show that it doesn't have to be the triangular packs of yesteryear. My preference:
http://greatcafes.blogspot.com/2011/04/now-thats-how-to-sell-sandwich.html
and http://greatcafes.blogspot.com/2011/07/now-thats-how-to-sell-sandwich-part-2.html
