Ever wish that you could get totally clutter-free page layout in Salesforce. You know, pages where each and every field gets used with some regularity, and nothing extraneous? Well you can with Field Trip. Once installed, simply name your trip, select an object (e.g. Accounts) and, optionally add a filter (for record subsets). Then you will receive a report detailing field usage (or lack thereof), available for simple export.
Field Trip lets you analyze the fields of any object, giving you instant insight into what percentage of your records (or a subset) have that specific field populated. Run reports on the standard and custom fields you have in Salesforce for a better understanding of which field are important to your organization.