RAW only. I regret that I did not start earlier than 2009. Having a lot of photos JPG only. I am much better with development photos today than in the past. Looking back on those JPG there is just a little more that can be improved. Development cost time. But I got that routine now. Returning home I first mark the photos with stars (1- not good, 2-good but not worth it, 3-good candidate, 4- very good / choice. I never give 5) Then I focus on the 3 and 4 stars. Checking exposure, WB, contrast, highlights, noise reduction, saturation and more. I use DxO Optics Elite icw Filmpack for special presets (for example Black & white). And I use Lightroom 5 also with add-ons that come with presets for effects. So yes, it cost time. But hey photography is fun...isn't it? !