Front: I used to have a Light & Motion Seca 700 (pretty good for lighting the roadway, very good for being seen). I sold it, so now I use:
DiNotte 600L plus Dereelight DBS V2, as compared to my Dodge Caravan w/ commentary
I may also throw on a helmet-mounted light to help attract the eye. Depends how paranoid I'm feeling that day
Nova BULL emergency-vehicle strobe head, Trek Beacon bar-tip blinkies, and I now have a PDW Radbot 1000 on my helmet, not shown there (sort of a turbo-SuperFlash).
^That's my winter commuter. My three-season commuter has a DiNotte 140L taillight and Trek Beacon bar-tip lights, plus a SuperFlash on the rack:
Both commuters are dosed up pretty good with reflective tape, and so am I:
BTW if anyone gets the hots for reflective tape after seeing that, let me recommend the Reflexite V82 that I've been using. It's thin so it doesn't try to peel itself off, it's got very high reflective performance, it's the premium 10-year grade, and you can get it in colors if you don't want silver (although silver is the most reflective). night-gear.com carries it and doesn't have a minimum order charge.
but I feel like I need to add more lumens to my ride so...
If you can remember to turn them on, the Trek Beacon bar-tip lights
are a great add-on. They give you a visible horizontal width, and if they're aimed level, they're pretty bright to the viewer, as you can see from the YouTube videos I linked to. They use one AAA per side, so you can use rechargeable AAAs. They do burn through batteries relatively fast, so throw in freshly-charged AAAs every 20 hours or so. They're also easy to install and you don't have to make room on your seatpost for their mount.
I'm also a big fan of the SuperFlash as long as you get it aimed dead level and straight back
. People seem to not comprehend that bike blinkies are directional and have to be aimed at the target.