This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
1) I was leveraging Spring MVC and jQuery together and my html element IDs leveraged dot notation. For example, I would have <input id="myObj.firstName" />. jQuery, of course, needs special characters escaped as part of the selector. I can't tell you how many times I forgot to escape a dot and had an issue arise.