Tesco Lotus plus at Srinakarin road now has some self checkout counters. That means no cashier there, just a scanner, a display and a system for paying with credit cards or cash.
Tesco launched it at Chamchuri square last year as a test - looks Luke the outcome was good.
Today I saw a few people using it already.
And by the way, these counters are an addition not a replacement for cashiers. You can still queue up and get a smile and a wai if you like.