Wallet - Receive BitCoins with BitCoin-qt

How to receive BitCoins with the use of BitCoin-qt.

The first time you open the tab "Receive coins" the array will either be empty, or contain one label with an addresses made default by the program. 

An address looks similar to "1JjjEUyvUpFc3aptAxWiqJG21AH571UuWn". It is used to receive BitCoins. Sort of like a bank account number, you give it to the person who is going to transfer money to you.

I will recommend, in order to keep track on where you get money from, that you make a new address for every firm/person you receive BitCoins from.

If you're going to receive big amounts of BitCoins make several address. Eg. PersonA #1, PersonA #2 etc. 
Just in case somebody gets a sniff about you've received tons of BitCoins, and trakcs down who you are, and tries to hack your wallet on your computer.

There's no harm in making a lot of addresses, as long as you make it easy for yourself to keep track on them by labeling. You can always delete them, but keep in mind, the address still exist, it will still be able to get BitCoins send to it, but nobody is ever going to get it, since it isn't owned by anybody. If you gave that old address to a friend, and he/she transfers BitCoins to it - it's just too bad fella. Remember to inform them about the current address you use to receive their BitCoins.

New Address: Press the button with the green plus sign on it and a new windows will pop-up. Here you can write a label (write a name or anything that makes you know what you use this address for) An address code will automaticly be generated for you, press "Ok" and it will appear in the array.

Typo fail : You just made a new address the receive payment from your friend...Oh no wait, there's typo in the label you made, and your friend is already sending BitCoins to you...and because you are a little CDEO like me, you'll do anything to correct it. You can.
Simply right-click the label, select "Edit" and you can edit the label.
This edit of the label will have no impact on the transfer at all, since the address generated remains the same even though you rename the label.