Post your sale. Free.
About a minute, no account. People searching for sales this weekend will find it.
Signs on the poles are against the rules here
Corpus Christi Code Sec. 38-3-9 makes it unlawful to fasten, tack, nail, tie, glue or paste a sign in the public right of way, and Code Compliance does enforce it. The same rule allows three sales per address per year, up to three days each. Posting here costs nothing and gets you found without a sign on a pole.