Trezor or Hardware Wallets, where you can have your private keys.
I store my earnings when I trade on exchanges like Paxful.
trezor is good, i think it is ok if we must spend some money to keep the rest still save on trezor, and the price is not expensive too
Yeah, if you keep more than 0.5 btc, you should definitely get one hardware wallet. No matter if trezor, keepkey or ledger nano s. I perasonally don't store that much since I've cashed out some, but I like to use bitcoin core on my desktop.
at least the money we spend is not greater than the bitcoin we save. it will be the same, but still can be used in the future anyway if we have a lot of bitcoin