If you use iGoogle, you can use a calendar gadget to add your Business Expenses calendar to your iGoogle homepage.
Adding gadgets to your iGoogle page is easy, and takes only a minute. Open your iGoogle page, click Add stuff, and search for Google Calendar gadgets. When you find one you like, click Add it now. For more detailed information about adding Google Gadgets, read iGoogle:Adding Gadgets If you're completely unfamiliar with Google Gadgets learn more by reading What are Google Gadgets And Their Features.
Whether you're tracking expenses for your small business or incidental expenses related to your employment, Google Calendar lets you see how much was spent, where and exactly when. When you use Google Calendar to track your business expenses, the hardest thing is remembering where you put the receipts.