Last month, Singapore Post gave its customers a Freepost envelope, similar to a postage prepaid envelope. This means that the postage to any local address is free. This C5 sized envelope is valid for postage up to 40 grams. On the back, there are different advertisement designs featuring the services provided by Singapore Post. However, this envelope is no longer available to customers since the promotion is over. If you would like one, try requesting excess stocks from the counter staff.