How can you produce $3 a day with small or micro work? But I don't have a correct answer to this because I don't know how it is possible to earn $3 dollars without any professional or skill.
You can be an investor and earn from that money of yours. It's literally letting your money work for you. It doesn't need any skill but you need to have quite some hefty capital and how can you that?
Can start out with time deposits in the bank but everyone hates it here, right? But I am just giving some possible ways and genuine method of doing it.
In exchanges, staking USDT but you have to compute based on how much you're going to actually not stake but deposit and save there in return of the APY that will give you.
Like with your goal of earning $3 which is $90 a month if 30 days. So for a year, you'll be estimating to earn $1,080. Let's say the basic percentage is 8% for flexible savings but it can be as high as 10% or even more. But let's just put it on 8% as standard.
With my calculation, you need to have at least $13,500 in USDT or any of equivalent crypto or fiat if some deposit products gives that 8% APY.
But to remind you, doing that in a bank or an exchange won't guarantee the safety of your asset as they've got limit for the banks on how much they're only securing with insurance and with exchanges, you don't hold the keys.