1. DIGWe read every token account in the wallet and today's price of each coin.
2. SORTEmpty accounts and coins worth under $1 go to the graveyard. Everything else is left alone.
3. BURYA few transactions that you sign (one per 20 empty accounts, fewer accounts each when there is dust to burn) burn the dust and close the accounts. The rent returns to your wallet.
THE FEE15% of the rent you get back, and it drops with your rank, down to 5%. It is taken in the same transaction that returns your SOL, and goes to RIP's fee wallet. No rent back, no fee.