I've been meditating on a regular basis for almost a year and my random daydreaming habit has disappeared. I do however make it ok for me to daydream as I do errands, while listening to music on my iPod. I just think about my intentions and my ideal life. It works for me and allows me to be focused when I need to be. It's just a habit that took time to implement and a lot of messing up and trying all over again. But I got it right