Add-work Billables Simply send billable add-works for clients to approve without hassle. It's simple & easy, for both parties. In just a few clicks and the client's approval, you can begin any add-work free of hassle. Since there is record of the client approval, you are protected from potential bill contests and charge-backs. Back to Main Features NOT CONVINCED YET? BE AN ALPHA-TESTER. Busydesk is currently functional & in private Alpha testing. Request an invite to be part of this unique experience. Please enter a valid email address. Sign me up Something went wrong. Please check your entries and try again. Busydesk © 2019. All Rights Reserved.