I personally use Pandadoc for my contracts and proposals. It'd be cool to either upload a signed and completed PDF file to a documents area. That way clients would always have a copy of their active contracts or documents related to their subscriptions tied to their account . Also, it'd great to be able to paste a link to any contracts in a generic client notes area. I know there's an admin notes area for internal purposes. But if a WYSIWYG editor could let us post notes to the client's dashboard, that'd be cool.