Visited one or two villages over the years, it can be a good experience, I would always hire a care and drive, apart from the first time, that way you're not a prisoner and as previously said find a hotel nearby. If it's your first time you'll be expected to fund the two day party which is in honour of your presence, then all the young Thai guys turn up and drink all your beer, one of which could well be her husband, eat all the food and leave without so much as goodbye or thank you, that's their way. Then the trip to Big C and Makro in her uncle's truck has already been mentioned, make sure your wallet's full. You'll soon know if it's the life you want, certainly not for me but a couple of days with your own transport can be quite worthwhile.