http://sean-pollock.com/tutorials/quickly-improve-pictures-photoshop//. First of all, please leave a comment, I love to hear from you guys! This is a pretty basic tutorial to give photo's nice warm and contrasted tone. If you have any requests for tutorials (I can do pretty much anything in photoshop) post it up.
Pretty basic but good tutorial. Just play with contrast and brightness and you can improve any picture in most of cases. GM is a nice addition too, just play with it!