My expenses break down into this..
registration fee's
renewal fee's
bank fee's
office expenses ( % for home office )
Any software or tools I use such as domaintools or clickmojo
Accountant fee's
Lawyer fee's ( the odd year )
Escrow.com fee's
My accountant usually says " is this it " ?
There has been the odd year ( once ) where I bought a computer and attended a couple events but besides that the gas consumption to and from the bank isnt worth recording lol