Personally written organization helps me. I like to use Trello to organize my thoughts. When you get an idea, write a quick note to get it out of your head so you can stop thinking about it. It's written down, you now have the freedom to let go and attend to it later. Schedule specific time to look at that list and put it on your Calendar so you don't forget. "I don't need to think about that right now, I made time on Sunday afternoon to prioritize and pick out which ideas are worth it." or "I will only check my ideas for things to refactor when I have a lull in my schedule, but I'm busy right now."

Also on the tower of ideas-- it's not a to-do list, you don't have to commit to every idea that flies through your head. Your ideas are a great resource for you to reach for any time you need it. A lake of ideas you only need to go fishing in when you happen to want to.