In regard to your fitness and nutrition routine, I say SUPPLEMENT.
My latest favorite pre-workout supplement is Jack3D. If you are feeling tired or less than enthused about hitting the gym then Jack3D is for you. I take it 20 minutes before my workout and it gives me that little extra energy, strength and stamina to ensure that my time at the gym is not wasted. It tastes great and does not leave me feeling jittery like other similar products.
Protein is my other favorite supplement. I drink a 20 gram protein shake (MuscleMilk powder) either first thing in the morning or as my mid-morning snack and then have a 40 gram protein shake with glutamine post workout. The rule of thumb is to have 1 gram of protein per pound of body weight (possibly more depending on your training goals) per day. The easiest way to come close to that is to drink protein shakes. I add in the glutamine post workout to help with muscle repair and recovery.
Lastly, a multi-vitamin is always a good idea for anyone but especially those that are training regularly.
My supplemental routine varies depending on my training goals but I always incorporate a pre-workout blast of some kind, protein, glutamine and a multi-vitamin.