Strike is a good wallet to use until you have enough in there that warrants a withdrawal to cold storage. Maybe that's 1M sats. You can also use it as a general spending wallet/hot wallet too. 

 Any harm in moving your #btc from strike to proton wallet rather than cold storage? 🤔 

 And its fast and allows lighning transactions skips fees and slick design 

 Lowest on chain fees nostr:nprofile1qqsvn0dkjt80raqrxd470c98n7zrdehmcvj6p5hgw3kyku6zyd8z0fqpzemhxue69uhhyetvv9ujucm0d9hx7uewd9hj7mggy94