What are the most used electronic components?

I have recently been getting more and more into hobby electronics. I believe that I would one day like to make a career out of this. There is an electronics surplus store that I get components from but unfortunately it is a 2 hour drive away. At this place the components are very cheap, like pennies for 10, and... show more I have recently been getting more and more into hobby electronics. I believe that I would one day like to make a career out of this. There is an electronics surplus store that I get components from but unfortunately it is a 2 hour drive away. At this place the components are very cheap, like pennies for 10, and there are just so many shelves full of trays with what looks like everything I could ever want.

My questions is, what components are the most used? What should I stock up on?

What ranges of Capacitors, Resistors, Diodes, and Inductors would I be using the most starting out in electronics?

Are there any other components I should get while am at it? ICs, Transistors, Relays, Motors, etc? I want to get into Radio and Robotics once I get a grasp on the basics.
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