One of the most common "tricks" involves a complete DIY fluid exchange rather than a simple drain. Pictures of this process often highlight the stark contrast between burnt, brown old fluid and the vibrant translucent red of fresh ATF.
For detailed step-by-step guides and community-sourced photos, check out the forums at Bimmerforums or Ford Truck Enthusiasts for model-specific transmission hacks.
Always use a dedicated transmission funnel. It is longer and narrower, preventing spills on hot exhaust manifolds that cause smoke and odors.