The job is wrapped up - final payment is collected - everyone is happy.
Here is why you need to stay in touch with that client of yours and some specific ideas on what to do 1 day after the project is completed, 5 days after, 180 days, and 365 days.
If you're interested in improving your sales process, check out the 8 week Remodel Your Sales Process course. Kicks off 1 week from today! Details here: https://remodelyoursalesprocess.com