How should you fold an invoice that will be placed in a window envelope?

Question

A. Use an accordion fold
B. Fold the invoice in half lengthwise
C. Fold the invoice in half crosswise
D. Fold the invoice in half, then fold it in half again
E. Fold the invoice into quarters

Answer 1

A. Use an accordion fold
Use an accordion fold for an invoice to be placed in a window envelope: Fold the bottom third up, then fold the top third back so the address appears in the window.