Little bits of software
Here are a couple small things I like point to every now and again, in hope they'll be useful to somebody besides me. I myself use these pretty much every day.
Web File Types Contextual Menu Plugin
For Mac users, a utility that makes it easy to set the type and creator codes for downloaded Frontier files. You know the drill -- you download a guest database and need to deal with the type and creator codes before opening it. With this utility it's a click away.
Validate HTML and Validate CSS Bookmarklets