1. You should be sending under a business name, as over 3/4 of all physical mail is corporate and business reply mail. Pick a business in your area (I mean city, not next to your house) and use their return address. Or make your own business name up and use an existing address across town.2. PGP is good. It's major protection is so that if the site gets compromised by LE and the entire database siezed, your identity and your buyer's identities are protected. I always cringe when a buyer sends me their address without PGP encryption since if the site got siezed tomorrow LE would be able to see that so and so from here bought an ounce of bud from me.3. You will have to figure out your own methods. There is a forum thread under shipping from someone who interned at USPS with a lot of good info. It's the one with the most replies ;)4. Don't use your private PGP key. Just forget about it, you won't need it one here, use your public one and just make sure you have a strong keypass for it.5. Here is a thread where I have laid out what I do to make my BTC transactions anonymous: http://dkn255hz262ypmii.onion/index.php?topic=1066.0 - usually you want to go something like this: Dwolla/LR/CC --> Tradehill/MtGox --> Tumbler --> Bitcoin on PC --> SR on the way in, and SR-->Tumbler-->Bitcoin PC -->MtGox/Tradehill -->LR/Dwolla/etc -->Western Union, Moneygram, or an anonymous international credit card <--- I use this.6. Buying off of SR is not stupid. You are an insane asshole if you buy from SR and use your seller account to do it, and you should be caught as a matter of principle. Just use PGP, create another public key for your buyer profile, that way you can use an established seller you know isn't LE and only they will have your ship info (and encrypted, to boot).7. please refer to number 5. thread. Yes, a tumbler is important becuase although it's extremely hard to actually track a BTC address, a tumbler makes it virtually impossible to tell what the coins were actually used for.8. My thoughts exactly9. Virgin coins are coins that have been generated brand new by being the address that calculates the new coin block. They have no transaction history in the block chain.10. You need to use something. Dwolla is alright I guess.11. Reserved for more answers.I do this because I am a fairly nice guy, and I care about the community. But I also do this so that if you want awesome bud or BC mushrooms you will come to me first.....Anarcho47