I run my own handyman business so all day all I do is post ads on CL, Instagram, Pinterest, Vine, Backpage, Twitter, LinkedIn, RSS feeds, Tumbl(e)r, Odd Jobs, Yellowpages or YP, many many free ad sites, there's an RSS feed that automatically distributes to 100+ different ad sites. You do have to take into account CR. For example--
YOUR TRAFFICK -1,000 visitors
# OF PPL CLICK- 100
RESPONSE #- 1
THIS IS HOW IT ALWAYS WORKS SO I'D HAVE TO POST QUITE A BIT.