Do NOT use the screwdriver method.

Its for dire straits ONLY ( stuck in the middle of now where , with a screwdriver and a oil pan).
Hot oil CAN gush out of the "hole" made by a oddly place scredriver.
The scredriver can damage the inner thread of the oil guide etc

Walk/drive to any car shop or kmart/woolies/big W and buy the right tool for the job and SAVE on oil changes because you are doing them for the rest of your cars life