Bank Evolution

When I was young, you had to cash a check at the issuing bank and then deposit the cash at your bank.
When the check interchange system was created, you could deposit a check at your own bank without fuss, but you still had to fill out a deposit slip.
Eventually, banks eliminated the deposit slips, because when they knew who you are, they knew your account.
Now, you can snap a photo of a check with the bank’s smartphone application, and they’ll handle it all electronically.
I hope the check clears quickly, because I need a new smartphone soon.