I have recently started using Solayer's Jade Card, and to be honest, this design quite overturns my understanding of traditional encrypted wallets. Previously, when dealing with wallets on the blockchain, the most common approach was to integrate multiple chains and add MPC for multiple signatures. Now Solayer has directly moved the "bank card distribution logic" to the on chain stablecoin account, which has impressed me. It's your set of mnemonic words (main wallet), which can be used to send several "sub cards" with different purposes, limits, and even shared with family and friends. For example, I am currently using: • 💰 Main card: used for on chain operations, transfer and financial management, etc; • 🍱 Living expenses card: used for buying coffee and making payments when going out; • 👵 Family card: Give my mom an attached card, and the stablecoin will automatically be used to pay for living expenses every month, with a limit set; • 💼 Friend Card: Sometimes we need to collaborate on crowdfunding an NFT or DAO fee and open a card directly, which is transparent and clear; • 🏦 Savings card: Lock up unused money as a cold savings card. This is equivalent to 'sub card=sub account', with the same logic as the familiar 'bank affiliated card', but moved to the stablecoin world. And each card can be set with limits, usage permissions, purpose tags, and the ability to freeze, all of which have never been so refined in on chain asset management. Most importantly, you don't have to open a bunch of wallets or import a bunch of private keys anymore. A set of mnemonic words can manage the entire structure and reduce complexity. This kind of innovation is quite interesting, I suggest you give it a try! 🧐