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Human beings are learning machines. We spend our lives learning. We can't help but learn. The only question is what we will learn and how it will affect our lives. Unfortunately we have been conditioned by the school system to think that learning can only take place in a classroom. We need to take charge of our own learning.
Working retail or serving wasn't exactly what you had planned when you were a little kid but right now it's a great way to earn some cash-sometimes even a lot of cash. If you're willing to work long nights and chat up your customers, serving could earn you lots in tips. If you have some retail experience, get a job in managing. This is great on a resume to show your organizational and teamwork skills.