Ganache is the one-click blockchain. It's an easy-to-install, personal blockchain that you can use to deploy smart contracts, develop decentralized applications, and run tests. It's available as both a desktop application and a command-line tool for Windows, Mac, and Linux.
Once you installed Ganache (it only takes seconds to do that), you will have your own Ethereum-like blockchain running on your computer. In addition, Ganache will automatically set up ten accounts with 100 test ether each.
There truly is no easier (and cheaper) way to start playing around with your first blockchain transactions.