I keep hearing a similar anecdote from my favourite podcasters and bloggers. They'll run into a problem, Google for a solution, and find that a post that they wrote a long time ago shows up in the results. Turns out I'm in good company. 

An idea for a post came to me over the weekend. I knew it was an idea I had considered before. Turns out I had gone the extra step and written about it...5 years ago. 

I think the advice is still relevant. I hope you agree.