11 Options to optimize images in Linux

With passage of time and many theme changes I made in my various blogs I've noticed that are 3 things that make a site load slow: poor hosting some javascript scripts and images that are very heavy.

The first 2 are easiest solution (a good hosting and godaddy and remove unneeded scripts.) But deal with images sometimes do not do it for simple laziness, or may not know program that does it or