How to add your user to "wheel" group
Unfortunately alot of the folders in Lion are set to "wheel." So if you want to mod them you have to change the owner and the permissions, even if you're an admin user. To fix this, add your admin user to "wheel" group with the command below:
sudo dscl . -append /Groups/wheel GroupMembership
Then just change the permissions on your folders to where "wheel" members can write to them:
sudo chmod 775 /MyFolder
If you do the following it will also recursively (-R) affect all the folders inside that folder:
sudo chmod -R 775 /MyFolder
😀