How to Get Music off Your iPod.
At 99 cent a song, there is no reason to redownload all those songs and spend another 30 thousand dollars repopulating your computer's music library. It's your music, so get it back. Go here.
How to Replace Your Battery
Apple charges an arm and a leg to replace your iPod's battery. They also make it especially difficult so that you are more willing to you use their service. My advice is to buy the battery off of Amazon and then follow the tutorial here.
Put YouTube Clips on Your Video iPod.
YouTube is full of great videos, so just go here and put in the link of YouTube video and pick iPod from under Convert File To drop down menu. Then you simply add the video file to you iTunes.
Dump iTunes and use Floola
iTunes keeps you in the grips of Apple which contrary to popular believe isn't a nice company looking out for your best interests. So support open source applications and use Floola. You won't be sorry.
Install Applications on Your iPhone.
The iPhone is awesome, but it's much more awesome when you add the user created applications. There is a great community creating fun programs like SNES emulator and IM chat applications.