The Black Hole of ATM Withdrawals
We live in an increasingly digital world, but cash hasn't disappeared completely. We use it for tipping, small local vendors, parking meters, and vending machines. However, a common mistake is logging an ATM withdrawal as an "Expense" and then forgetting about it.
When you do this, that money enters a black hole. You know you spent $100, but you have no idea what you spent it on, ruining your category distributions.
Setting Up a Cash Wallet
The solution is simple: treat Cash as just another account in DevinBook.
- Transfers, Not Expenses: When you go to the ATM, log it as a transfer from your Checking Account to your Cash Wallet.
- Log the Small Stuff: When you buy a $3 coffee with a $10 bill, log the $3 expense from your Cash Wallet.
By tracking physical money as diligently as digital money, you plug those "mystery leaks" and ensure your financial data is 100% accurate.

