Keep your receipts throughout the year, for EVERYTHING. If unsure keep the receipt and ask your accountant if it is relevant. Keep your receipts organised and sort in to categories and total each category. If you are claiming a motor vehicle, keep a log book.
An additional tax deduction of 50% off the cost of an asset will apply; if it has a value greater than $1000 excluding GST, and is bought by a small business that has a turnover less than $2 million, and is bought between 13 December 2008 and 31 December 2009,