title: How to save images for web-pages? (format/size)
body: <p>What is the best way to store images for web-sites?
  What size I should not exceed?</p>
  
  <p>Now, I save all interface-files in png (mostly in sprites) and usual images in jpg's. Some images are about 100-150Kb. </p>
  
  <p>What quality and compression should I choose while saving images?</p>