One of the most important things to consider when jogging is your clothing, especially the type of shoes you wear.
You want something that is comfortable and that is specifically for running or jogging.
You can also choose cross trainers if you desire, but it is better to have something with cushioning such as the
Nike Air and similar shoes. The cushioning in the shoes will help prevent any hard landing on your feet as well as allowing airflow through your feet to prevent damage to the feet, knees and legs.
If you have to make sacrifices due to budgetary concerns do not do it with your shoes.