Testnets are free to use, but they are not risk-free. Testnet sites sometimes link to fake versions, testnet tokens occasionally get confused with real ones, and a wallet that holds both real funds and testnet experiments is one wrong click away from trouble. The fix is simple: a dedicated wallet that touches testnets and nothing else.

Setting one up takes about ten minutes, costs nothing, and makes every future testnet session safer and easier to manage. You will create a fresh wallet, fund it from official faucets, and keep it completely separate from the wallet that holds your real assets.