Being a Mac user hasn't changed the way I look at life. I've used Apple products since before there were Macs, and I've been a big fan of the Mac. However, it hasn't changed anything about how I look at life, except, perhaps, that I do it from crappier furniture because I spent the extra to get the Macs.
However, being a Mac user has made an enormous difference in my approach to computers and, specifically, to my approach to designing software in a corporate world. I find that, coming from a Mac point of view, I often tend to see things in a different, and ultimately better (from a usability point of view), way. It is irrelevent to me if I "think different" because I use Macs, or if I use Macs because I "think different".
<aside>Although, I must say, I've always thought it should be "Think Different
ly". Or, really, just "Think" or more appropriately "Just Think".</aside>
I enjoy using a Mac - OS and all - whereas I enjoy using Windows
applications (some of them...). I've never enjoyed using Windows
per se. I now expect more from a computer, so, I guess, using a Mac has at least changed my expectations - for computer-related stuff.
I've used Macs from '85-'89, from '92-'94, and from '02-now. I had a 1999 PB through work that I sort of technically opened occasionally, but not really until I put Jaguar on it a while back. So, roughly half of the past 20 years, I've used Macs. The other half, it was pre-Mac, Windows, or Solaris. Honestly, aside from when I was in front of the computer, nothing about my life was particularly different when I used Macs as opposed to when I didn't. I didn't get laid any more, or any less (though often it was due to it being impossible for it to be any less

). I didn't have better, or worse, complexion. I didn't get better or worse jobs, become more or less talented, have a better or worse temper, laugh more or less, etc.