An SSL/TLS handshake requires at least 10 times more processing power on a server than on the client. SSL renegotiation attacks can readily take advantage of this asymmetric workload. Watch this video to learn how to easily mitigate these attacks.
The iXpenseIt Lite (free, limited to 10 expense categories) and iXpenseIt ($4.99) applications are great for tracking personal expenses against a budget. But for business people, especially travelers, these programs can be a real godsend. You can customize the expense type, generate all sorts of reports, search for expenses by various criteria, enter expenses in various currencies, and even export individual records with a photo receipt attachment.