I made another trip for my job last week. I go roughly once every three or four months, which is not bad at all. A major bonus of these trips is that I usually get to see my mom, sister and niece, who live near Dallas. (The office I work for remotely is in Arlington - between Dallas and Fort Worth.)
The 1.5 - 2 hour flight goes by quickly when I watch something on my laptop. But I only had about 20 minutes of TV to watch this time. (It was a free download from iTunes.)
Another way to spend that time is to see the amazingly expensive and laughable stuff for sale in the SkyMall catalog. (A post is coming about the latest incredible items offered.)
As I said before, I fly infrequently enough that I will never get a free flight from air miles. So I travel with whichever airline gives the best deal and best arrival/departure times. This recent trip, I flew American on the way down and Frontier on the way back. I like Frontier better.