I have an iPhone 4, iPod Touch and iPad... And I have problems with syncing.
If I download an app directly to my iPhone and put it in a folder, and then sync my iPhone with my Mac, it will pull that app out of the folder and put it on the last homescreen of my iPhone.
If I download a song to my iPhone and add it to a playlist, then sync my iPhone with my Mac, it will pull the song out of the playlist and maybe even remove it from my iPhone.
If I sync the iPad or iPod with my Mac, it will add a bunch of random apps that I either previously deleted or did not request at all.
Any ideas how I can make this a more managable process?