Here are some simple things you can do - today - to find and prevent bugs in your code. These take very little effort to implement and do not cost any money. (And typically don't require management approval.)

1. Turn on warnings.
2. Make warnings break the build.
3. Review your code.
4. Get a review buddy.
5. Track all of your defects.
   • Date
   • Where found (file, class, and/or function/method)
   • How found (self, compile, peer, test, qa, field)
   • "Type" - some brief description to define the type or category of defect