Do I Need To Write

On my blog, I mean. Some nights I really just don't feel like writing anything, but I force out a post which usually ends up rambling or boring most likely. Would it be better if I just skipped those nights? How long do I have to write every day for to prove that I can do it? 

I've always been a proponent of quality over quantity, so if I have days with nothing interesting to say, is it even worth writing a blog post on those days? 

Maybe this is one of those days, and this little post is just filler so that I can get through the day and hope I write enough backup posts tomorrow to cover myself for the next few weeks. Sneaky sneaky...