A bludgeoned half-century from new boy Richard Levi and career-best bowling figures from leg-spinner Max Waller saw Somerset to a 63-run Friends Life t20 victory over Warwickshire at Taunton.
Levi hit 69 off just 34 deliveries, while Waller's four wickets cost just 16 runs as last season's beaten finalists started this season's competition with a win.
Surrey opened their campaign with a 17-run victory over Essex at The Oval.
The hosts managed just 128 for eight but defended that total, despite the visitors starting their chase with a 44-run opening partnership between Mark Pettini and Ravi Bopara in just six overs.
However, when Pettini edged Jade Dernbach behind the wicket, the complexion of the game altered and by the time the score had been doubled, Essex were in deep trouble.
The visitors lost seven wickets in 10 overs, three of them to the spin of Gareth Batty, who finished with three wickets for 20 runs.