Steps for setting up a new Salesforce.com Sandbox

Below are the steps for creating your own Developer Edition (DE) org. You can create as many sandboxes for free as per your need.

DE orgs are multipurpose environments with all of the features and permissions that allow you to develop, package, test, and install apps.
1.       In your browser, go to https://developer.salesforce.com/signup
2.       Fill in the fields.
3.       In the Email Address field, make sure to use a public address you can easily check from a Web browser.
4.       Type a unique Username.
a.       Note that this field is also in the form of an email address, but it does not have to be the same as your email address, and in fact, it’s usually better if they aren’t the same.
b.      Your username is your login and your identity on developer.force.com, so you’re often better served by choosing a username such as firstname@lastname.com.
5.       Read and select the checkbox for Agreement and click Submit.
6.       In a moment you’ll receive an email with a login link.

A new sandbox is ready for your testing 

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