One method to launder bitcoins is with buying and selling altcoins on an altcoin exchange.
Especially if you buy some anonymous coin like monero you will break any links from your original bitcoin to your mixed bitcoins you will receive after selling the altcoin.
This is one of many methods we will publish on bitcoinmixerguide.com
Always check back for new information on how to use bitcoin anonymously and with perfect privacy.
In an age of total surveilance using privacy tools like anonymous bitcoin wallets is even more important than ever before.
Combined with tor or a VPN it is a powerful tool to gain some privacy back no matter what you are doing on the internet.