In this tutorial we will be using some adjustment layers in Photoshop to create a vintage effect on a modern photo.
After Step 4, if you don't wish to continue or don't have the time to, you can download the .psd file and apply it to your image. As the effects are presented in the individual adjustment layers, you can tweak them as necessary for the image you are working on.
Also, for the curves layer I have created a Curves preset which you can also download. The download link for the Curves preset is available in Step 8, and the .psd download link can be found at the bottom of the page.