Let's face it: checks aren't convenient. If you're using them to pay for something, there's all the extra writing and mailing. If you're receiving them, there's a whole process for getting them into your account. Well, MasterCard says it solved the convenience issue with Send: a new system that allows businesses and individuals to securely exchange funds in minutes. This means that you'll no longer have to wait for a check to clear or for the transfer to go through. While businesses looking to send refunds, claims payments and rebates are a key focus, MasterCard is letting regular folks leverage the system to send money to friends and family, too. What's more, you don't have to be one of its customers to opt in, and you can use Send to pay for goods at participating retailers.