Seth Godin says that he writes at least three posts for every one that makes it to his blog. Throwing away the other two away allows him to have a blog of bests. I haven't ever thought of doing something like that, it has been hard enough for me to write enough to even post once per day. But I actually do something very similar with photography. After taking 380 photos over the weekend I eliminated 365 of those photos before sharing the remaining 15. And the process, while hard, is satisfying in the end.