Pulling motor and tranny without leaking tranny fluid all over the place making a mes

If I wanted to pull my tranny along with my motor(slant 6), how do i do it without making a mess with all the tranny fluid that will eak out the tranny?

i was thinking I can remove the motor first. then drop the tranny out if i need to. but do I really need to remove the tranny too if I am just doing s motor swap and tranny filter change?