Work Efficiency units from the Canteen can be exchanged for Work Efficiency coupons.

Work Efficiency Coupons are required to bid on Securities Auction when purchasing Trade Guild securities. They are also used to update robber's tip list in Brigands' Den.

1 Work Efficiency unit = 1 Work Efficiency coupon, exchange can be made in both directions. When exchanging, Work Efficiency units are taken from the Canteen, and the received coupons appear in the current clone's bag.

If coupons are no longer needed for any reason, they can always be exchanged for Work Efficiency units; in this case, the coupons will be spent, and the Work Efficiency will again appear in the Canteen.