Any ideas for blog tools, plugins or addons to add to a blog?

[Zhuli]

I'm always looking for plugins to improve Blogger's comments' look. I mean, it's pretty ugly without

I got a nice script to add smileys in my comments... this kind of stuffs.

[pebam]

I am new into blogging world and I only focus on human hand written contents. Does plugins really helpful for blogs. I don't think widgets are good coz it slowers down while loading the site. I had use before but I have removed all. Now I use a news code. Any suggestion are most welcome.

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