What's your "if only..." sentence?

In his excellent book, Linchpin: Are You Indispensible?, Seth Godin references a challenge from corporate coach, Deanna Vogt. It's to fill in the blanks in the following sentence:

I could be more __________, if only __________.

Frankly, I think this is a tough question. And part of the problem, at least for me, is that the specifics can change over time. Today, this is my response:

I could be more focused and productive, if only there weren't so many interesting distractions.

What's yours?