I've been up all night   I've been writing this letter   And I think I might have found a better way   To tell you all the things I've got to say   I put it in writing and you'll get it in the mail today      Well I don't know but I can't help feeling   That you got to stop your double-dealin' ways   Cheatin' on me is a crime that never pays   And that's all in the letter and you'll get it in the mail today      Well I would tell you to your face   But you'd just lie to me   Put you in your place   But you'd just try to defy me      Been up all night   Pencil and a paper   And I think I might have found a safer way   Say goodbye without much more delay   Well it's all in the letter and you'll get it in the mail today   I don't mean tomorrow   It's all in the letter and you'll get it in the mail today   I don't mean no western union   It's all in the letter and you'll get it in the mail today