I'm trying to buy better quality items lately, but I have no idea how to take care of them. I'm still used to just chucking my jeans and tees in the wash and wearing the wrinkles out!

1) Leather: I've got a great leather jacket, and some leather shoes. I've also got a leather bag which seems to be peeling away from it's backing - does that mean it's not really leather? It doesn't feel like vinyl to me. I don't want to wreck my beloved jacket, and I want to replace the bag with something similar (or better, since it only lasted 3 years). Is there anything I can do to make sure they last for ages?

2) Silk: I've been trying to get used to the idea of woven tops, but cotton blouses just aren't me. I seem to be drawn to silk shells and there are plenty in the stores in bright colours right now. How would I launder them? Are they a pain in the butt to care for?