Ever find yourself firing up an office program like Microsoft Word during an After Effects session just so you can preview the text you're working with rendered in all the different fonts you have installed? If so, then you might find the new FontList Plus script sold by aescripts + aeplugins exceptionally useful. It gives you a dockable AE font panel where fonts can be browsed quickly right in the AE interface, using your choice of sample text and type size. Once you've found the font you want to use, just select that font, which automatically copies its name to the clipboard, allowing you to paste it into the stock AE character panel. 
FontList Plus is compatible with After Effects CS5 and later, and sells for $29.99 — with a special introductory price tag of $19.99 until October 8. Just a tiny enhancement, but if you do a lot of type design in After Effects, it's worth a look.