I recently was having trouble with my Apple ID and couldn't purchase anything in the iTunes Store. I tried Apple Care, but they couldn't help and had me fill out a form online.  After speaking with them, I found Apple's MY INFO page, that allows you to update the information that is associate with your Apple ID.

Even if you aren't having trouble with your ID, it's a good idea to login and check it out and make sure everything is up to date.

How to do it:

1. Open you browser and go to myinfo.apple.com

2. Enter your location, language, and apple ID credentials.

3. Once you login you can then update several pieces of information. The Email address associated with your Apple ID, your primary address and Shipping address, phone numbers - in case Apple needs to call you regarding a support call, newsletter and email subscriptions, and the different types of ways you allow apple to contact you, such as Email, snail mail, or phone.

Listen to this episode of MTD.

When you boot up os x and the login screen appears you can find out some information regarding your Mac.

Right below where it says 'Mac OS X" and it shows your mac's name, you can click on that area and each click reveals different information.

Click it and it will reveal which OS X version you are using.

Click again and you will see what build of OS X you are running.

Click again and it shows your Mac's Serial #.

Click again and it reveals your IP address.

Click again and it shows network account.

Once last click and it shows the current date and time.

(Thanks to Corey from The MacCore podcast for this tip!)