What to expect when doing a border run to Kuala Lumpur for expats in Thailand?

Several users shared their experiences with border runs to Kuala Lumpur, highlighting that there were generally no problems encountered during their travels. Important preparations include having proof of funds (20,000 Baht), a departure flight booking, and a hotel reservation, although one traveler noted that they were not asked for these documents during their trip. The consensus seems to suggest that staying just one night before flying back is acceptable.