When you are using photoshop with massive amounts of layers it may all get a bit jumbled up, that is why I have provided you with a few simple tips to help you along the way. Although these tips may be time consuming they will help you In the long run.
1. Name all of your layers, this means its easier to locate and change.
2. Use groups, it is so much easier to orginize. You will thank me for this tip.
3. Layer Comps, they save certain states of visibility or orders of layers. This means that you can view different types of the same image rapidly.
4. Keep all your files that you need in one folder. It will save a lot of time navigating through all those folders!