Thomas, 30, left English side Harlequins at the end of last season and has now opted to return to the Gnoll to sign a two-year-deal with the Welsh All Blacks.
The 30-year-old former Swansea, Bristol, Pau, Celtic Warriors and Scarlet No.10 made 23 appearances for Wales, but often played second fiddle to leading points scorer Neil Jenkins. Having been blighted by injuries since his Wales days, Thomas failed to re-establish himself at senior level with spells at French side Pau, the Scarlets and a short-term deal with Harlequins proving unsuccessful.
And now he accepts he must search for a job outside rugby to run alongside his Neath commitments in order to support his family.
"I will get a job outside rugby and give my family more stability," he said. "I have had enough of slogging my guts out in training every day and not getting the chance to play at weekends, which is what happened at the Scarlets.
"There were other enquiries about my availability to play professionally, but it was just a year here, or a year there and the money being offered wasn't great."
Thomas began his career with Neath back in 1994 but is optimistic of his return to his old club and will be approaching the new season with enthusiasm.
"I enjoyed my time with Neath at the start of my career and I'm looking forward to playing for them again," he said. "Neath have a good set-up. I know they have an up-and-coming fly-half in James Hook but I'm sure there'll be opportunities for us both."
The WRU has launched a campaign to create a long term legacy for Welsh club rugby by highlighting the advantages of volunteering. Rhian Edwards, a volunteer at Seven Sisters, has enjoyed many benefits of her volunteering at a grassroots rugby club including being part of the Rugby World Cup volunteer workforce after being nominated by the WRU - and the WRU is asking for more people to develop their 'Welsh rugby roots'.
Wales head coach Warren Gatland and captain Sam Warburton say their first prioirty on Sunday in the opening game of the World Cup is to win against Uruguay and not get overly concerned with points difference.
With only days to go until the biggest rugby competition in the world begins, rugby fans visiting Cardiff this autumn will be able to enjoy a special display at National Museum Cardiff as part of the celebrations surrounding the Rugby World Cup.