The iPhone is among one of the easiest to use gadgets there is but we’re always looking for a quick fix or just something to make it a little more easier.

iSmashphone has compiled a list of 15 tips and tricks to get more out of your iPhone (spoiler: only a few require jailbreaking your device) ranging from the simple addition of an extension to a contact all the way to using Skype over 3G. One particularly useful trick we’ve yet to see get any attention is multiple computer syncing:

Apple only allows you to sync your iPhone with one iTunes library at a time. When you attempt to sync your iPhone to another computer, you get the following message: “Sync_alert.” There is an easy way to “trick” iTunes. All you need to do is switch the “Library Persistent ID”. Read “How to sync your iPhone with multiple computers” for the full step-by-step process.

Via iSmashphone