Do you guys jack the car to change oil?
If you have an air compressor you could use something like this;

Warm car up
Remove dipstick and insert suction tube
Turn on suction and wait for oil to be sucked out
Change filter
Refill with oil & replace dipstick
Job done
This is how I do mine, takes 15mins and gets ALL the oil oil of the sump, more from experience than when I have jacked the car previously.
Just a thought.
