Llandeilo began life in Division Three West with a spring in their step following a valuable 16-10 home win over Morriston.
The promoted outfit had fly-half Kelvin Davies, who also kicked two penalties and centre Glyn Jones to thank for tries in either half.
There was a clean sweep of home wins in the rest of the league with Crymych, Lampeter Town, Laugharne and Penclawdd all getting off to a flying start.
It was the same scenerio in Division Two West where the home side's ruled.
Waunarlwydd beat Mumbles 25-15 after tries from hooker Lee Brooks and full-back Johnny Lewis together with five penalties from fly-half Jonny Davies sealed the win.
Loughor started the season on a winning note by defeating Pencoed 19-14.
The hosts took control and a commanding 11-3 interval and edged home thanks to tries from wing Liam Hedges and scrum half Steven Wake.
Fly half Ben Davies scored nine points but Pencoed opposite number Mark Davies went two better by contributing 11 points with a try and two penalties. But his hopes were in vain along with and replacement fly-half Tom Cross' late drop goal.
Full back Dafydd Lewis grabbed a brace of tries for Kidwelly, who beat Aberavon Quins 21-6 at Park Stephens.
Promoted Pontyberem were also victors on the opening day but they had to come from behind to beat Ammanford 14-10 at home.
Mike Sauro kicked a trio of first-half penalties for the home side before centre Iwan Harris grabbed a late try to clinch victory.
In Division Four West, Chris Moore impressed with 15 points to seal a win for promoted outfit Cefneithin over Amman United.
Wings Luke Jenkins and Owain Lewis and hooker Will Holbrook also got in the act with tries in the 32-16 win.
The winners of a filmmaking competition organised by the education charity Into Film and the WRU enjoyed a behind the scenes tour of the Millennium Stadium - and a chance to be photographed with the WRU's fire-breathing, rugby loving mascot, Scorch The Dragon, and Welsh international, Jake Ball.
The Wales Under 20 camp are in a quietly confident mood as they face Ireland in the U20 Championship, with Coaching Co-Ordinator Allan Lewis and full back Dafydd Howells targeting a top five finish in the tournament.
Wales U20 may start as favourites against Japan this evening in the U20 Championship, but Team Manager Mark Taylor is warning against complacency. He is also hoping a good win will boost morale and 'kickstart' performances.
Coach Richard Hodges is hoping Wales U20 can put a disappointing campaign behind them when they tackle Japan tomorrow as they look to finish the U20 Championship strongly to secure a good seeding for next year's tournament.