I will now introduce you to five people and use only the two simple steps in this system to show you how to remember their names.
Here is Zac.
Step 1, I change Zac to an audionym like:
Step 2, Associate the sack with Zac in some illogical way.
like driving his truck:
in a restaurant:
sleeping with a sack:
Imagine him taking the sack with him even when he plays golf!:
When you see him again, and remember the sack, it will remind you that his name is Zac.