nightmare.org
American Superstitions at nightmare.org

Superstition #728

An old superstition pertaining to clothing is, that before putting on new clothes a sum of money must be placed in the right-hand pocket, which will insure its always being full. If by mistake, however, it be put in the left hand pocket, the wearer will never have a penny so long as the clothes last.

Source: Current Superstitions (1896), entry 728.

Fanny D. Bergen, editor.