Hi Jim,
Welcome. There is TONS of information here. The best way to start is to read the information in the "new shopper" section. That will give you a basis to go from, and then you can ask more specific questions about things that are confusing, etc.
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“Lying in bed would be an altogether perfect and supreme experience if only one had a colored pencil long enough to draw on the ceiling."
~Gilbert K. Chesterton