What are some of Mr. Terrific's most notable comic book storylines?

Notable storylines include his introduction in *Hourman* (2001) and subsequent role in *JSA*. His exploration of grief and attempts to resurrect his wife were central to storylines in *Mr. Terrific* (2003-2006). He's also been involved in major DC events like *Infinite Crisis* and *Final Crisis*, showcasing his strategic abilities.