Save winners
When a request gives a great result, save it in a shared document with blanks for what changes: '[customer name]', '[service]', '[date]'.
Name and sort them
Group by job: customer replies, marketing, hiring, operations. A library of ten good requests covers most weekly work.
Review monthly
Update requests when your prices, policies or tone change, and remove ones nobody uses.
Do this today
Save your three best requests so far in a shared document, with blanks for the parts that change.