Since managing and working with Gentoo requires a different set of procedures and methods, let's have a look at a few applications which will help you work with Gentoo efficiently.
Eix: If you've searched for packages in Gentoo, you will have noticed that Portage takes quite a bit of time to search through its package-list to find the relevant packages. Eix (EbuildIndeX) comes to the rescue by cutting down the time required to perform searches by a huge magnitude. It builds a cache of the Portage package-data and searches through it when you use it. So instead of typing "emerge -s foo", you will now have to type "eix foo". To install Eix, just type "emerge eix", and run "update-eix" to build the Eix cache. From the next time, you can directly run "eix-sync" to sync Portage and rebuild the eix cache.
Ufed: Gentoo's Use flags offer a level of customization not offered by any other popular distribution and the ability to fine-tune each package before it gets installed. But the full list of Use flags supported by Gentoo is huge, with a few package-specific flags and many other less-known ones. Ufed (Use flags editor) comes to the rescue with an ncurses interface which lists each Use flag that the distribution supports, a short description of what it affects and the ability to mark/unmark it. By the time you're done, you will have tuned the use flags list perfectly. To install, just type "emerge ufed". To run the application, just type "ufed" in the command line.