As much as I would love to comment on each and every blog I follow, it is impossible. I follow hundreds of blogs. I just can't get to all of them without it taking over my life.
I don't have a set commenting regime. I try to comment as much as possible, aside from the Blog Hops, Waiting on Wednesday, and IMM comments, but I know I could do better. It's a hard thing to balance. Commenting takes away time that I otherwise would be reading or writing reviews (I have about 10 that I need to write after my vacation reading binge and other procrastinating) or writing my own fictional pieces. Blogging will only be fun for me when it's a hobby. If it turns into a chore or a task to complete, the magic will disappear. But I love getting comments - any blogger does. And I like interacting with other blogs. I get excited to read reviews. Comments that I intend to be short quips often turn into multi-line statements when some thought leaps into my head that I just have to share.
I have a group of blogs that I read and comment on pretty much every day. Other blogs I comment on when I can. I like to go through my Dashboard and randomly click on blogs and then comment on posts I find interesting. I wish that the Dashboard could be organized by the number of followers each blog has, because I like visiting smaller blogs. People who don't have as many followers logically don't get as many comments, and I know how much I appreciated anyone reading my blog when I was starting out (I still do).
I also think it's important to leave substantive comments. I'm not 100% perfect at this, but I like to say something other than "Great review." Not that there's anything really wrong with that - hey, a comment is a comment - but I like to show that I've actually read the post and thought about it at least a little bit. The problem with this is that it takes more time. It's easy to hit blog after blog with a quick "hi there" comment, but individualized comments just can't be pasted in. I prefer quality over quantity...but I still wish there was a way to easily get in both. :-)
How do you comment on blogs? Do you spend a set amount of time each day commenting? Do you try to comment on all the blogs you follow?