Quick text search in Eclipse
Completely by mistake I stumbled across this one. You can super rapidly search for text in the currently open file without CTRL-F`ing and typing the text there. The condition is that you already have an instance of that text. For me, it usually happens that I need to go through the instances of a variable in the source code.
Step 1

Select the text you want to search for.
Step 2
Hit CTRL+K
Step 3

Be amazed.









That would be Ctrl+F3 in Visual Studio. Shift+F3 to search backwards.
I’m amazed that it’s not a single key for such an important and common task.
Eclipse is amazingly unusable in it’s default configuration.
I managed to get myself accustomed to its default configuration, but I love the fact that it is highly configurable.