Re: Discrete eBay purchases
No matter what you do, your parents will find out so just bite the bullet and let them know. What are you guys trying to buy that you don't want people to know about anyway???
At any rate, you could try getting a PO box, but they will eventually find out about that too, and I don't know how many places will actually deliver to a PO box.
When you get your own place you can buy stuff without your parents knowing.
When all else fails...Ham Radio!
I still have the same old HP DV9700T laptop I've had for years...still kickin'