So do I. Except my wife number, which I should learn. But I know how to say if a month is 30 or 31 days by counting my knuckles. These are the kind of "hardly

So do I. Except my wife number, which I should learn. But I know how to say if a month is 30 or 31 days by counting my knuckles. These are the kind of "hardly important but easy to remember tricks" I like