Maybe I'm an old stick in the mud, but to me, it does matter.

For example, a lot of folks just flat refuse to work over 40 hours... can't say I blame them at all. Some of these same people are doing christmas shopping and similar recreation activities over the internet on company time and they're salaried... that's a form of stealing in my book. Worse yet, the projects they're working on are sometimes behind. Do your christmas shopping and personal emails at home, not at work. If you're fortunate enough to get some downtime at work, use it for something to further your career at the company you're working for... learn something new either about the systems already in place or something having to do with your skill set.

You don't want work to interfere with your personal life... don't let your personal life interfere with your work. Sure, sure... your kid gets hurt at school and you have to take off right NOW! That's not the type of interference I'm talking about... I'm talking about things like christmas shopping on company time and personal emails and even answering forum questions... it's just wrong and it's why a lot of employers think of employees as a "profit detractor". Particulary in IT, we need to change that perception. It's about half the reason why some employers think that overseas outsourcing is a viable alternative.