Things to do
I think most people have said it already. Eliminate strong blue light at night, warm white led bulbs everywhere. Use Twilight for Android, and I have a lot of trouble on my Linux machine keeping Redshift going, so I don't use it much at night. Take 5mg of melatonin at night. In the morning, hit yourself with blue light. I use the Philips goLite which has blue leds.