The Six Nations crowds gave some Cardiff business owners a lot to celebrate too.
John Williams, manager of Cardiff's Shop Rugby says weekend sales were "beyond all expectation".
The Wales and Dragons flanker Dan Lydiate has been chosen as the best player in this year's 6 Nations Championship.
First Minister Carwyn Jones has welcomed Wales’ victorious Grand Slam squad to the Senedd to present the Six Nations trophy to the team.
The Welsh Government has invited the Grand Slam-winning team and Wales fans to the Senedd for a special event this evening.