As part of your blogging activities, you should take some time to maintain your blog. Everything needs a special consideration to be productive in the long run.
The most common mistake that some bloggers do, is to neglect old posts. Once written, we get a feeling that “this” post is now the past and we are yet eager and preoccupied by “how to come up with new wonderful ideas” for the incoming days, months, years..
Old Is Gold
The best thing to do, is to polish your old posts which get the most number of hits. To deduce your elite posts, use your Awstats, sitemeter or any tool that you use to monitor traffic on your blog. This is one of the important reason of why you should use such a traffic monitoring tool.
Why Should You Bother To Polish Your Old Posts?
Some of you might be wondering why to waste your free time doing such a time consuming activity when you could just concentrate your energy on new posts. Well, let’s try to make you change your mind 
1) From my own experience, I have observed that now I write in a better and improved “style” from what I used to do in my early blogging days. It’s all normal, since early days are the most uncertain, shy, weak and experimenting moments. As you persevere with time, you should be doing much better, at least to a level with which you are satisfied with yourself. (Set some goals!)
So, this “may” mean that some of my old posts are not to the level which I’m breeding now. It might not be to the same presentable fashion. Further, my readers might have some ambiguities and frustrations to read them. Do you want this to happen?
2) Polishing your post also means to fix broken anchor texts, removing non-existing links, remove and update videos and fixing grammars..etc
Did You Know?
The Google Spider is excited when it sees you are updating your blog, old posts and repairing dead links. 
It’s time to dig that old archives to polish those diamonds and make them shine brighter than ever!
And How About Your Approach?
I did this activity myself for a couple of my old post, but I’m still not satisfied with some. So I think I will take some time with my archive this week.
And how about you, what is your approach?
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NOTE: I will now be blogging only on WeekEnds
Very good suggestion Wakish.
Even about a month back, I didn’t use to pay any attention to my older posts. But, I updated some of my old posts sometime before and got very good result from mainly search engines. Then, I am optimizing images, links these days and the task is still not completed.
I’m reposting my old posts at a moment. That came as the outcome of my impotency to make the new works, but your article silenced my complaints for the loss of my programs by helping discover the benefits of such actions. You perfectly explained what I have felt. Thank you
I read your post yesterday so I checked out my blogs last night. I found that not only was my writing less sophisticated but I failed to properly monetize many of my posts. I also realized that I didn’t utilize All-in-one-SEO for my old posts (from before i installed the plugin). Hopefully this will help, will let you know.
Nice tip!
However I have only 35 posts so I won’t try that yet.
However, what you said is true: your writing skills have improved a lot since your first posts!
Keep up the good work!
Really good idea this. Never thought of it in those terms. Thanks for sharing. Doing good here. How are you doing?