I think everyone has experienced lower back or back pain in general. Here is a few things I found useful.
Apps like PostureMinder (https://chrome.google.com/webstore/detail/postureminder/dkmkfopiihabelocpelofchappjjnpkm?hl=en) – reminds me to stop slouching and stretch continually.
Lumbar Supports in Car
Dan Stretches advised me to do (on side)
Information > After 30 minutes of sedentary your spine starts to erode (confirm this)
Meloxicam 15mg is what I was pescribed for a lower back injury and advised to take with one paractemol (usually you take 2 tablets) as the effects are better and 1/2 valium if it is really bad.