After realizing that there are many, many questions that boil down to this question, I thought I'd make a canonical answer. The only issue is, I'm wondering if this defeats the purpose of this site? (i.e. is the purpose so that everyone can ask, "I made a website for salons. How do I get customers?" and "I made a website for dentists. How do I get customers?" and we give individual answers?)
Looking for feedback on whether this is a worthwhile canonical type question.