I want to move to a new PC and take my Toad connections with me because I have a few and don't want to retype them all.
Copy the %APPDATA%\Dell\Toad for Oracle\VERSION\User Files folder to your new PC.
Ie.
C:\Users\USERNAME\AppData\Roaming\Dell\Toad for Oracle\VERSION\User Files
C:\Documents and Settings\USERNAME\Application Data\Dell\Toad for Oracle\VERSION\User Files
Beware: In older versions of Toad "Dell" in the path above used to be "Quest Software".