Cash

If i somehow start getting ahold of amazon gift cards instead of cash it should be pretty easy to not report that as cash.

My main concern is what if i sell products that i buy with those gift cards, do i need to report that?

And when you deposit cash into a bank the irs will see that and get suspicious right?

OR. What if i get a fake paypal, get a debit card and deposit the cash into any atm?