DEAR ABBY: My teacher told me I should write to you with my etiquette question about envelopes.
Should people mail their personal letters in envelopes that have a curved-edge closing flap or a straight-edge closing flap? Someone told me that one kind is for personal letters and the other kind is for business letters. Is this true? -- JOSH IN CHICAGO
DEAR JOSH: If it's true, it's the first I have heard of it. To most people, the most important thing is what's inside the envelope, not the shape of the flap.