Can I ask a generic btc question here? I trust people here more than other places.

Mainly, I used a dedicated offline computer to generate my wallet and key. So basically paper wallet. I know when I want to spend or cash some, the safest method is to send some to the exchange or wherever and send the balance to a new paper address.

Is there any alternative to this where I can keep my paper wallet send some btc and not be open to my key being exposed to the internet? Is there a safe method?