Hey Im a noob here, Not sure how to post my own posts, I was wondering what kind of paper should I use for bitcoin paper wallets? and would a HP Envy 4500 serious (inkjet printer) be good for only printing paper wallets? Should I use normal paper? someone said something about using paper they use in the Navy (which was kevlar) but where I live nobody sells that, what are the alternatives to this type of paper? And is a inkjet printer the way to go or should I just return it for a laser printer? I need these paper wallets to last for years with them ever fading. Are paper wallets truly the safest way to go for storing large amounts of bitcoins stashed away for years?  or could they possibly get stolen without ever knowing (like lets say bitaddress.org was compromised) Another thing was is Bitaddress.org truly a safe generator? Do they store any codes they've generated? like how do they know they didn't regenerate an address that is already in use by someone else?? Could paper wallets ever glitch in the system? by that I mean if something ever changed in the network wouldn't you have to update those paper wallets somehow like you would with software wallets? & When you use paper wallets what is the safest site to import/export them? (is blockchain any good??)  Also is it a good idea to keep copies of them? and is bit address a trustable
Last questions, What does the term "Sweeping" mean in bitcoin wallets??? Are encrypted paper wallets good or prone to glitches when you want to cash in on your bitcoins? & what exactly is "change",where would you find your change??  & when it comes to paper wallets, if you want to buy something at a store for example, you have 13 btcs and the item you buy is 3 btc's  would all your bitcoins be removed from that wallet even though you should have 10btc's left over in it?   ..

 I'll send a donation to the person who can answer all my questions, I appreciate it
Thanks,