Probably you've never noticed the icons on your screen… oh well, of course you've noticed them (you've clicked them lots of times) but maybe you've never thought how amazing they are. I've never considered my icons so much until few months ago: I've discovered a new world.
If you look at each single icon, you can appreciate the shadows, the gradient, the layout and the perfection of their shapes. Each icon (well, not all) is the fruit of hard work and lots of ideas and tries and discussions. Sometimes they're little pieces of art.
I'm starting to "collect" icons. I've made a folder and I'm saving every single icon that I discover and I like. It doesn't matter if I'll never use an icon that I've saved, the importance is the feeling that the icon arouses in me.
There's a great site about icons, you should take a look, it's called Iconfinder