Is there anyone out there who does weekend/weekday visits to Thailand?

Maybe you work in a neigbouring country but have a home in Thailand or you work in Thailand and your job requires you to travel a lot.

If so,what visa do you hold?

The non immigrant multi entry O visa valid for one year is the best option if you need visa entry. But most people in that position I suspect just would use visa exempt entry if they do not qualify for the non immigrant visa.