Driving around the block in a cold engine won't do you much good. The engine has to be HOT, meaning a good 15-20 mins of driving.
When an engine is running and then you turn it off, the oil literally takes a minute to drain back into the pan.
It then takes 10-15 mins for the leftovers that are splattered all over the engine to drain down the sides and into the pan as well. (this amount is very small and won't make a difference)
By the time you jack it up, get ready for the OC, crack the drain bolt, remove the oil filter, ALL the oil that can make it into the pan will already be there or in the drain pan.
The main reason to get the oil HOT and give it plenty of time to circulate in the engine is to get all the heavy stuff that's on the bottom of the pan suspended in the oil and then allow it all to drain out quickly.
Every time the engine sits for 8 hours + all the heavy suspended particles in the oil sink to the bottom of the pan. If you drain the oil when it's cold, a lot of the heavy stuff on the bottom of the pan won't get removed with the flow of oil. It will remain on the bottom of the pan and get mixed with the new oil and that ain't good.
A REAL BITOG-er does things properly and changes the oil when the engine is hot
I usually give it 20-30 mins with the hood open to cool off after a long drive before i start working on it. 90% of the time though, i jump right in there while it's all still boiling.