I agree with Grant and Piet here - there are no shortcuts with it.
One thing that can help though and I strongly recommend is to adopt a coding standard AND enforcing them. To add to what Grant said, having a 5 line script MAY be 50,000 lines long when properly formatted. Our ERP system has all of its stored procedures written on a single line. scrolling over to read that is painful, but run a code formatting tool (like SQL Prompt or Poor Man's TSQL Formatter) and that single line expands out into something that is easier to read and debug. Sometimes that single line breaks out to 15 lines, sometimes it is 1,500 or more.
The above is all just my opinion on what you should do.
As with all advice you find on a random internet forum - you shouldn't blindly follow it. Always test on a test server to see if there is negative side effects before making changes to live!