It's inevitable - whenever I finnish up a project, I always have leftovover mortar or thin-set, or cement or similar.<br /><br />What do you do with the extra? <br /><br />I don't feel comfortable pouring it down a drain - even if it's a pound or two left over so I usually end up pouring it under a drain pan under a rain gutter or something to level it back up... Just curious what others do.