Once you remove the access window, you will see that the oil filter is right there, a little higher then the window.
Then, I usually use any piece of cardboard laying around and shape it in a funnel or half-pipe shape. I then insert it just under the oil filter.
Once this is done, start slowly unscrewing the oil filter to let the overflow drip on the card board and into your oil bucket. The fact that the window access is big enough for a hand and the cardboard makes all the difference.
After a few seconds, you can totally remove the oil filter, and wait for all the oil to drip out.
Put back a new oil filter and you're done. This last picture is to show that you can do this without dropping one drop (those drops are not mine)
