One of the most basic takeaways from a facilitated session is an action plan. This can be as simple as a bulleted list on a flipchart synthesizing all the decisions from the event. For higher engagement and accountability, you can put recording the actions in the hands of the participants.
Here's two templates for participants to record actions:
In both cases, participants use the left side to brainstorm out their own goals. Then, they break down those goals into actions and give themselves due dates for achieving the actions. Checking in with an assigned accountability partner or peer coach is often the first action.