Bits required:
First, pull the lenses out of your car, along with the wiring harness for the bulb. Put the headlights up to do this. The harness is held in with a fastener to the area under the headlight. You can remove the turn signal harness connector by pushing the connector towards the rear of the car. The plastic pin stays in the sheet metal and the outer three wire connector half has a square recess for the pin's head. (Thanks to Miq Millman for this tip). The harness is also held in by a clip at the other end - you'll have to push down on the tab to get this loose. Now carry the whole mess into the house.
Let's start with the electrical stuff. This is going to be a little confusing at times as I'll try to explain things using layman's terminology. Feel free to contact me for any clarifications.