[quote name='janglypangly']How do these work? Do they/can they redirect mail from going to my house to the box? I don't have much privacy at home because of my parents...Thanks in advance![/quote]
The small boxes run roughly $25-30 for the year, and the largest ones are aroudn $120 for a year. Compared to a place like The UPS Store where they're $60 for 3 months, it's a good deal. The downside is that you can't get UPS packages in a PO Box.
If you're looking to forward the mail to a PO Box, you'll just need to fill out the little change of address card at the post office. It's relatively quick to get things forwarded to the box, and doesn't cost anything.
FYI - pretty sure you've gotta be 18 to rent a PO Box. If you're looking to hide your porn from the parents, it might not be the best option.