Talking about cryptocurrencies, I noticed with the help from CEXs (despit most CEXs are reject Chinese clients for regulation resons), the chains other than BTC and ETH are very usable.

I invested some free money on NEO chain, and exchanged them to BCH (the hard branch from BTC) and ETH alternatives like Polygon, the gas fee is super cheap compared to BTC and ETH. And they are fast.

**Disclaimer: I'm not encourage anyone to invest money on bitcoin or something else.** I win my free money from a hackathon project (which I eventually gived up in a very upset way due to Chinese unclear regulations on this field), and I don't want to get involved with money laundry groups when selling crypto for real world menoy, so I decided to invest into where it is, aka the DEXs, the liquidity pool (I still don't know what it is, why named a pool).

It yields me about 20 USD per month, and with some help from a small and suspicious company that issue visa cards that spent USDT, now I can enjoy this free money and buy some small stuff.

(If this sounds suspicious to you, then I promise, it's very suspicious. I can only recommend it if you can't find a legal way to do it)