This looks to be a cool tool for automating spreadsheet work, and Excel is fine for a very small client list, but for a long term solution you can use Insightly

This looks to be a cool tool for automating spreadsheet work, and Excel is fine for a very small client list, but for a long term solution you can use Insightly CRM for free forever with up to three users, and it integrates right into Gmail to track your conversations with clients. http://insightly.com http://insightly.com (Disclosure - I am the CEO of Insightly).