You have become my favorite person on this forum for that line
I've found that I'l usually work on 6-7 songs at once: I'l write down the meat of all the songs in around 2-3 weeks, and then keep working on it occasionally for the next while to get it to where I want. Sometimes it backfires and I get sick of hearing the same songs over and over and never quite getting there, and so I scrap all of em out of frustration, but usually I enjoy hearing the halflife of the imperfections in my songs.
I guess its just what you want to take from the music your writing, wether its for show or sale, pride or popularity, expression or entertainment, cliche or cliche, etc or etc....