A good .jpg compression tool
A favorite tool of mine is JPEG Optimizer. It does a nice job of crunching the file size of .jpg photos by as much as 50%. You can work with one file at a time, or point it at a group of files. A nice feature is the ability to compress, even more, specific areas of an image. This is handy when you have a lot of leaves, grass, brick or other items in the photo that drive up its file size. You can add more compression to those areas while leaving the model untouched.
Check out this tool, and others, at http://www.xat.com/jpegopt/index.html
