All guides

Three published, more when they are actually finished

Guide	Setup time	Pays back if
Email that files itself	about 40 min	you handle 20+ mails a day
Spreadsheet to database	half a day	two people edit the same sheet
Invoices on a schedule	2 hours	you bill the same people monthly

I do not publish a guide until I have run it at two different places, which is why there are three of these and not thirty.

Asked for, not yet written

Getting appointment reminders out without a booking platform
Stock counts that survive being done on a phone in a cold room
Turning a shared mailbox into something two people can both work without treading on each other