Gentlemen, we were given brains for a reason.
- I always put down cardboard, old plywood, or whatever to keep drips off the floor.
- Have a suitable drain pan to catch everything.
- A ziplock bag over the filter will catch most of the mess.
- A few rags under the filter will catch any missed drips
- In some difficult locations, I form aluminum foil to catch and direct oil to the drain pan.
I hate cleaning up oily spills. A few minutes prep time eliminates the messy clean up.