Ethereum

With fragmented liquidity becoming a bigger issue with the launch of so many new chains, you would often need to bridge/swap your tokens across different ecosystems to do anything. That's no good.

The two main solutions I see are:

1. Unified Chain Balance
This solution provides you with a new wallet that consolidates your balance across multiple supported chains - giving you a "unified balance". The good thing is that you no longer need to worry about which tokens you hold when completing a transaction. However, you need to onboard onto a whole new thing to get this working.

2. Spend Your Existing Tokens Anywhere
In this approach, you continue using your existing wallet and tokens, possibly having a preferred token for spending, such as USDC. Dapps and wallets would then allow you to spend this preferred token regardless of what the transaction requires.