When it is a new company (is going to launch in 1 month for example), i propose them to set a launch page (basic one, created in max. 15 minutes) for 100 €, to collect emailaddresses.
The launch page includes a text email to all of your visitors when they subscribe and say that this proposal doesn't include HTML (for images), because that is custom work and more difficult.
When the moment arrives, i ask them for the text they want me to send to their visitors.
In 70% of the cases, they ask to include a picture of the team.. I explain them that this was not part of the deal, but that i can change the message to a HTML email for 80€ (if provided the assets first).
So, selling a website earned me another 180 €, a happy customer (the launch page is added publicity)
How do you upsell?