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".
Wales captain Sam Warburton reflects on how the work the team have put in off the pitch, at their training camps in Poland, and in the way they conduct themselves, has paid off with their Six Nations triumph.
Ian Evans has tried to play down his individual role in Wales' Grand Slam triumph. The Ospreys lock is the only man to have played every minute of every game in this year's tournament, having returned from the international wilderness. But, he said, "it is more about the team effort than myself."
Wales captain Sam Warburton says the team is looking forward to saying 'thank you' to the fans, at a special event in Cardiff Bay organised for Monday evening. The Welsh Government has invited the squad and backroom staff to the Senedd to congratulate them on their Grand Slam triumph.
– Wales captain Sam Warburton
We know it is a great honour for us to be invited to the Senedd and if fans turn up to greet us it will make for a great occasion. All of us know how important rugby is here in Wales and we are humbled by the level of support we get from followers of our sport and from the general public.
Fans have been asked to arrive for 6pm on Monday. The First Minister Carwyn Jones will then present the Six Nations trophy to the captain and coach Warren Gatland.
Congrats Wales !!! Even my dad was rooting !!! Awesome run love Dai and Hayley !! http://t.co/UshryTw2
Well done Wales great win over France
Great day for Wales! Wish i was in Cardiff tonight. It'll be rockin'!!!!
Leigh Halfpenny finished the Six Nations as the tournament's top scorer, with 66 points, having taken over as Wales' primary kicker from Rhys Priestland.
Wales' try-scoring hero Alex Cuthbert has already begun looking to the future, after a youthful side secured another Grand Slam triumph in Cardiff on Saturday. The 21-year-old winger was one of seven players under 25 in the starting line-up.
– Wales winger Alex Cuthbert
We've still got a lot to develop as a team and as the years go by we can only get better. I am looking forward to the future. We can go forward as a team. With the young players we've got the future is going to be awesome.
Wales now head down under in the summer for three tests against southern-hemisphere giants Australia.
A recording of Wales fans singing 'Bread of Heaven' at half-time in their side's victory over France on Saturday has been released as a single to celebrate the Six Nations Grand Slam.
The artist credited on the single is simply 'Wales'. Proceeds from sales will go to the WRU Charitable Trust. It's available from Sunday via iTunes and texting 'Track Cymru' to 80818.