Oh I didn't know you didn't need return address on envelopes... that's handy... although I think I'll just keep using the same 'envelope' rules as I do for OR (which are more strict)... otherwise it'll get confusing.

I'm fairly sure I'll have annoyed McConnell mail room staff as the last letter I sent was really rammed into the envelope - I'd folded it in three to fit in a small envelope, and when it struggled, I was too anal to have it all loose in a bigger envelope. Hopefully the smaller one stretched in transit so they can put the letter back in without cursing me too much haha