Still boggles the mind, the fact that these aren't installed factory. Discovered these too late, but I think I'll grab one now so I have it for next time.I put a $10 B&M oil drain kit on my auto tranny pan. It allows draining the tranny pan just like an engine oil drain. Then, removing the tranny pan is a no-mess process.
I also got a reusable LubeLocker oil pan gasket instead of using messy RTV on the pan. That eliminates any scraping-off of the old stuff.
I've found that just draining the pan gets five or six quarts out of my 03's tranny, which is a bit more than half in the system. Doing this periodically is no harder than an engine oil change and keeps the oil fresh. Of course, the filter should be changed once in a while too, which is easy to do with the drain port and gasket.