Finally a relevant opportunity to mention my employer&#x27;s software on HN :)<p><a href="http:&#x2F;&#x2F;www.zonal.co.uk&#x2F;aztec-epos-solutions&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.zonal.co.uk&#x2F;aztec-epos-solutions&#x2F;</a><p>Not only does it split the bill N ways easily, it can cope with all manner of per-seat bills and shared items.