“There is never a traffic jam created from people going the extra mile”
“There are no traffic jams on the extra mile.”
“There are no traffic jams along the extra mile”
“It's no use going the extra mile if people don't expect it. You will never get extra credit for it. Just invest it on something else.”
“People of excellence go the extra mile to do what's right.”
“It's never crowded along the extra mile”