If you are developer or power user, and don’t mind shooting yourself in a foot, check out Chrome Extension for Dynamics CRM Power users, available as a Chrome extension or as a birthday suit a.k.a. source code.

Just some of our favorite features:

• God Mode. Makes all mandatory fields optional. Makes hidden fields/tabs/sections visible. Makes read-only fields editable.
• Record Properties. Displays information about current record like Created By, Created On, Modified By, Modified on, Permissions and Owner.
• Changed Fields. Highlights fields in the form that have been changed, but not saved yet.
• Minimum Values. This is intended for use on a new record. It fills out minimum values for all required fields.

This is a tiny subset of all the features available so do check it out when you have a minute and save yourself hours.