OneDrive, Microsoft's file sync app formerly known as SkyDrive, lets you store your files online, edit Office documents in the free Office Web Apps, and easily access your online files from your PC.
Give quote approvers the current scope and any differences.
Your quote approver can review the latest client scope beside the proposed terms, with differences called out before they decide.
Keep proposal approval packets complete with current folder files.
Your approvers get the proposal and its supporting files together, without hunting through a shared folder for pricing or scope notes.