JHS,
We all learn by our mistakes pal, I call it the curve.
Look at Shemandr's link & find your make vang. Then look for a manual on the manuf's. site.
Here's a suggestion for you. Get in the habit of taking project before-n-after pics for reference.
This works well especially for elec. wiring, vangs & those more involved projects.
I keep a folder of sketches & project specific material. My pics are in folders on my PC.
This way, you will work smart & not hard.
CR