Sending the invoice is the easy part. It's the follow-up that gets me, the second and third email to a customer who just won't pay. I had one sitting in my drafts all day, and I kept finding other things to do instead of hitting send.
More people experience this than they realize.
You can send the invoice but freeze when it's time to chase the money.
If this sounds familiar, the Library can help you find the bigger picture.