So I've got this friend who asks for PhotoShop help all the time. I've told her about layers, different tools, and what-not. She always seems gratefull and I always feel good about helping someone. So now, you lucky people, I'm bringing my advice to you.
I've been working with PhotoShop for the better part of 4 years. Though I don't consider myself an expert in any peticular kind of photoshopping, I'm most knowledgeable in art and web graphics. Recently I've been dabbling in textures. :D So I can help you from inking a scanned picture to making a fancy sig.
NOTE: I use Photoshop 7. Any info I give you will be in that format. I'm pretty sure that PS 5-CS(8) are fairly similar. I'm not sure about anything below that. :( Before you ask a question, please tell me which version you are using.
Ask away!