If you cut out the following (presuming that you consume the items off the below list) you will likely lose a couple of pounds and look slightly trimmer without doing anything else.
The nice thing about not being fit is that if you make any changes at all to improve your lifestyle you will notice a difference.
Consume no bread, beer, coffee, refined sugar and artificial sweeteners.
Needless to say junk food is also out. Cigarettes are out. Pizza out. Soda Out. Any food that makes a paper bag translucent is out.
If you do just this for even just two weeks the slight improvement should act as a motivator to actually make the time to get more active and eat even more healthily.
Best of luck to ya.