BTC vanity address - it's a normal bitcoin address that starts with some characters that connected with you. You can use it in places, where you must check up a lot of Bitcoin address, so you can find your vanity BTC address much faster. Also it can promote you better to any Bitcoin sender/receiver. Plus it is free ( up to 6 characters ) and easy to use - import it in Blockchain, Bitcoin Core, Multibit or Electrum - check up Bitcoin vanity address generator here -
https://bitcoinvanitygen.com/index.php.