Mixabit Features:

• High volume mixer and always a perfect mix with other users bitcoins, there will never be taint to your old bitcoins.
• Safe storage: we keep most of the bitcoins in secure encrypted offline storage.
• Protect your funds with a transaction PIN.
• Anonymous registration: We do not need any private data.
• Very simple user interface, no complicated options and settings.
• For small amounts up to 0.01 BTC there are NO FEES except the bitcoin network fee!
• For larger amounts the fee is only 0.5%.

Mixing best practices:

• Always wait some time before you withdraw and do not withdraw the same amount you deposited at once.
• Ideally just use Mixabit as your wallet, that way there will be no timing or amount correlation between your deposits and your withdrawals.