I didn't see a tips tricks section, so here it is in the off topic section. I hope this is useful to some but very cool to others. Note: Cable and DSL users will see this working animated trick all the time, dial-up users will not see it working until they connect to the internet.
find an animated gif from the web, anyone you want.(it has to be in gif format) Save it to your computer anywhere you like. Since I am a graphic designer-I have a gif folder in My Documents.
On the desktop right click-properties/desktop tab/customize desktop/web tab/new/browse and pick the gif you want to use from your computer. Click ok.
Go back to your desktop and you should see your animated gif. You can now pick it and move it around where ever you want on your desktop.
From your desktop again(not on the gif you just added)right click/properties/desktop tab/customize desktop/web tab. From here, you can do 2 things. 1. add another animated gif  up to as many as you like or 2. click on the box that says"lock desktop items" the second option will make sure your newly added desktop gifs dont get moved around. If, later down the road, you need to move them again, just follow the above directions back to the web tab and uncheck the lock desktop items.
I have several animated gifs on my desktop. I just thought it might be a little cool something not many people know. More to come!