Quick Subpanel is designed for jumping quickly to any subpanel without having to scroll down the page, giving you and your users more time to work on what matters. Configurable on a per-module basis.
Other add-ons of interest
Glances - Integrate All Your Applications
Accomplish More Every Day. Spend your time on getting things done, not on finding information. Glances securely connects all of your apps and provides a simplified view of the data you need right when you need it, in real time.
Tired of having to delete Contacts and related Activities by hand when deleting Account records? deletePLUS puts you in control of what records are deleted AND which of the related records are deleted. Available from the Accounts, Contacts and Opportunities Actions menu - fully configurable