You control your private keys
Ease of use: Easy
Supported coins: BTC
BitAddress is a way to create a paper wallet online.
All you do is move your mouse on the screen to "generate some randomness" which then creates a private key and public key.
This can then be imported to another wallet system (via the WIF key) or printed out and kept offline as cold storage.
There are points of failure when printing it and creating the address but the risk is low.
A fun way to create a bitcoin paper wallet.