Handling duplicate data posts faster.
There are a lot of ways to try to prevent and stop data from being sent more than once from a form, typically we use cookies, session, and redirects. And somehow we still end up with duplicate data in the database. So we add extra measures on the server side, run extra queries to the database to see if it already exists before inserting, etc. And we end up cluttering the original code with more logic to double-check.. [...]