What has been your best Paid Advertising method?

I know all too well about free advertising... it can be effective but it can be slowww going process as well. Paid Advertising can oftentimes generate faster re$ults I know. I have been thinking about adding a few Paid Advertising resources under my marketing belt for various projects.

So tell me, what paid advertising method(s) worked well for you? Thanks in advance for sharing.

Business cards, signage on my vehicle, membership to the Chamber.  Beyond that, I haven't had one work for me yet.

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