A single deposit *might* pass as not being noteworthy. Multiple deposits would set off alarms.
I always wondered what I would do if I found and kept a large amount of money. Just make small to modest cash purchases for the rest of my life?
Not that ive Thought about this or went through a cash horde, but what you do is maintain your same life style and pay as much as you can with cash.
Buying gas, fill it up. Pay cash.
Groceries, pay cash.
Paying off a store credit card, go to the store...pay cash.
Youd be surprised what a pain in the neck it is to pay cash these days.