I recently started using the Jade Card launched by #Solayer, and to be honest, this design really overturns my perception of traditional crypto wallets.

In the past, when dealing with wallets on the chain, the most you could do was multi-chain integration and add some MPC multi-signatures. Now #Solayer has directly brought the "bank card splitting logic" onto the stablecoin account, which really opened my eyes.

With your set of mnemonic phrases (main wallet), you can issue several "sub-cards," each with its own purpose, limit, and even share them with family and friends.

For example, this is how I’m using it now:

• 💰 Main Card: Used for my own on-chain operations, transfers, investments, etc.;

• 🍱 Living Expense Card: Used for buying coffee and payments when going out;

• 👵 Family Card: I gave my mom a supplementary card, with stablecoins automatically transferred monthly for living expenses, and I can set a limit;

• 💼 Friends Card: Sometimes I need to co-fund an NFT or DAO expenses, so I just open a card for transparency;

• 🏦 Savings Card: Money that I don’t use often is locked away as a cold savings card.

This is equivalent to 'sub-card = sub-account,' with logic similar to the "bank supplementary card," but moved into the stablecoin world. Moreover, each card can be set with: limits + usage permissions + purpose tags + freezing options, all of which make on-chain asset management more "refined" than ever before. Most importantly, you no longer need to open a bunch of wallets or import a bunch of private keys; a single set of mnemonic phrases can manage the entire structure, reducing complexity. This innovation is quite interesting, and I recommend giving it a try! 🧐

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