bowlofturtle
Do what I did ... goto Home Depot, plumbing dept., look for some clear plastic hose, about 2 meters will do. This hose is normally used for ice maker on a fridge. The diameter of this hose is small enough and it will fit nicely down the transmssion fill tube of your car. All you gotta to do is siphon out the excess fluid and it's just that easy
note: This procedure is only recommended for small amount of fluid removal, say after a tranny fluid change.
Also you should always check your tranny fluid when your car engine is hot hot, as fluids will expand with heat. Hope this helps, cheers!