Since I discovered WordPress some years ago, I used it in many sites (too many, saying the truth). But WordPress is so much simple and powerful that I cannot do without it anymore.
I wrote a serie of simple plugins to address some common needs I had (and still have) in my blogs. I'm now making them a little more beautiful and available to the community via the fantastic WordPress plugins repository.
Here you will find my simple pages about those plugins, but sometime it's better to install them and look into the options page. To write and mantain plugins take time, a lot of time. Each developer knows that. If you find a plugin useful for your blog, consider to give to the author a "thank you", literally or with a small donation.