What are some ways to get more attention to the driver behind you at a red light?

I love riding my bike and I plan to ride more regularly like to work on the good days, but man, even when I go "practice" riding late at night and have even a single car coming from behind me, I'm always holding my breathe.

I've watched some youtube videos about riding in traffic and some things I've picked up are:

1. Always stay in gear (incase you need to ride away)
2. Pick a side of the lane and not stay dead center
3. Flash the rear brake light to grab the drivers attention until they come to a full stop
4. If there's a car behind you while coming up to a light, try to slow down much a bit earlier so you have space to accelerate away if needed

While these techniques work, I've also been thinking about:

1. Getting a brake light that strobes (not sure about legalities)

2. LEDs for my turn signal without doing a LED relay so my turn signals hyperflash

Any thoughts?