I'm basically an amino acids, creatine and protein guy. Coffee before my workout (even though it's disgusting). Supplements are only that- supplements to your diet (which sounds like you do a good job of). They aren't miracle workers, so I tend to not rely too heavy on them. They're expensive, especially for me as a uni student.
My biggest thing is making sure you follow your macro nutriets (proteins, fats, carbs), making sure you're around your targets daily. A simple google search will show you how to calculate this on your own (it's not very hard, and there might even be one that does it for you). Understanding your BMR (google this as well) and how many calories you should be intaking each day is also key.
Lastly, I would suggest shifting away from lighter weights more reps unless you're injured or just looking to maintain. If not, I'd try and be anywhere from 6-10 reps per set of your lifts. One of the the biggest secrets to fat loss (and keeping it off) is adding muscle mass.