Tools

Programmers love tools - just to write a program, you need at least three: text editor; compiler; and, a linker - and that's excluding the computer and the operating system!
However, as with any other craft, there are certain rules you need to follow when using tools:

1. Use the right tool for the job
   Obviously, you wouldn't try to edit your text with a linker, but even-so...
2. Know how to use your tools
   The same way you can take your fingers using a circular saw incorrectly, you can run your project into a lot of trouble by abusing your tools.
   
3. Use the best tools you can get your hands on
   It's not just about cost - you can get good and cheap tools, but you can also get expensive shit.
4. Look after your tools
   You main tool as a programmer is your computer. Keep it clean and sharp and it'll be a lot easier to use.