My method is to say that in a stationery shop there will be envelopes, and envelope begins with the letter 'e'.
I was in a great little store at Westfield Doncaster today, called daiso. I love this store, with its huge range of bits and pieces to make life easy. It's a bit like the Tardis, small on the outside but enormous on the inside.
I was with a group of teachers, and needless to say we're nit-pickers when it comes to spelling, so of course I pointed out this sign:
Loved the immediate quip by one of my friends. 'Well, the stock on that display's not going to move fast.'