"For SAD you can buy these cute little light therapy boxes that are supposed to help, but they don't, because they are not bright enough to make a difference. W

"For SAD you can buy these cute little light therapy boxes that are supposed to help, but they don't, because they are not bright enough to make a difference. Waste of money" Hm. I have no idea how good the full spectrum white light boxes are for SAD. Instead I have a little Philips goLITE Blu -- a very small blue-LED-array therapy box that you're supposed to put just in the corner of your vision. It is very effective for me, even on its lower powers, to the extent that I can overdose on it and become jittery (like I sometimes do in the spring). It's alarmingly bright on full power, and you really would need to put it much further away. I use it sparingly to help correct drifting sleep patterns in winter (by brightening the middle of the day, usually). Fifteen minutes or half an hour, a few days a week in December and January, helps enormously.