I'm interested in learning about investing, but I don't make much. Any tips on what I can do? I make about 22K a year after taxes, I have enough at the end of each month to spare $100, maybe up to $200. I would be starting after the holiday season of course, can't spare much until afterwards. 

I have no knowledge of investing, don't know what are smart buys, what would help me reach long term goals (retirement, which won't be happening for another 50 years, a new car in 15-20 years). 

I'm leery of stock investing, but I do recognize it as the most typical and possibly profitable. 