What is the MRU add-on?

Filophile Most Recently Used Items is an add-on for CRM 4 that enables you to quickly return to items that you have recently viewed or edited.

Filophile MRU appends a view entitled "Recently viewed" to the "View:" picklist of a wide (and configurable) range of CRM types. This view lists, in reverse chronological order, up to 25 of the items you have most recently looked at or edited. You can simply click on an item in the view to open it in the normal way.

Take a look at Filophile MRU in action