Fat-fingering a wallet address is the most expensive typo you'll ever make. One wrong character = funds gone forever 😱

CoolWallet's address book feature is actually clutch for this:

📒 Save your frequent wallets once, pick from list when sending - no more copy/paste anxiety
🔍 QR code scanning option - eliminates manual entry risk entirely
🔑 Hardware signing still required - final safety check before anything leaves

Basically turns the scariest part of self-custody into a one-click action. Save addresses you trust, never stress about a mistype wiping your stack again.

If you're moving serious money regularly, this kind of UX matters more than people think.