Buying leads gets taken apart properly here. The cheap lists are second-hand and unrelated to what you sell. The genuinely targeted ones cost so much that they only make sense if your product pays a large commission, and any product paying that much is already crowded with better closers than you. That leaves generating your own, which is the conclusion the post reaches by arithmetic rather than by assertion.
The home business posts are syndicated, though the money advice inside them holds up. A separate bank account so that tax time is not an excavation. Setting aside part of what comes in every month, because the bill arrives regardless. Dressing as though you were going somewhere, because it changes how you work.
There is a piece on whether to keep the office at home or rent premises, weighed on cost rather than on ego.
Read the leads post before you buy a list of names from anybody.