This is a great way to Upsell and ask them how they like the service they have received)
Collecting payments from customers (via Paypal, Quickbooks/Intuit) and manage A/R+A/P
Sending notices (via email) to customers (Late payers, MIA letters, Your file is now closed letters)
Mailchimp email marketing management (I create the content, you prepare and launch)ie:, Adding and Removing Subscribers from Lists, Creating and Scheduling Broadcast Emails to Promote Content, Editing Follow-up Emails and Auto-responders, Creating Email Newsletters
There is so much more to this list….