Hans Angermeier has produced over 100,000 videos showing drivers how to fix things on their cars. He has broad expertise on basic repair procedures covering the majority of cars on the road.
If your blinker doesn't blink, or blinks rapidly, you likely have a burnt out bulb
If you have an electrical component that doesn't work, try replacing the fuse first
Many cars will burn or leak a little bit of oil. Over time, this adds up and you might need to add some - learn how to here!
Learning how to jump your car before you need to is an excellent idea