Another item would be software upgrades.
Such as Norton security, Accounting software or other utilities you use for the business.
Paying Mindraven to upgrade your forum or renewing your member access.
Another item could be vehicle expense. Drive to the computer store to buy items or to the post office to mail them.
If the vehicle is not a business deduction you can still take the mileage. currently it is 50 cents a mile. But you do need to keep a mileage log.
This is for the USA,Right.