Do not start a major project at night unless it is absolutely necessary, it will get interrupted.
I love projects, but I want to finish them if I start them. The other night i started a major reorganization project of our important papers. This would have been lauded by my wife if I had not started the project at 9 PM. Eventually my wife wanted me to come to bed, but I did not want to give up on my project yet. Long story short: I went to bed and I learned to start my projects earlier.