Thanks for your question, @AliJane. I'm here to share some insights about handling cash from sales to pay for expenses.
In QuickBooks, you can create a clearing account from your Chart of Accounts to deposit the sales. Then, use it when writing a check to pay for your expenses.
Here's how to create a clearing account:
Go to the Chart of Accounts tab from the left menu.
On the Chart of Accounts screen, click the New tab.
Choose Bank for the Account Type. You may choose any detail type you want for your clearing account.
Type in "Cash" for the name of the clearing account.
Make sure you do not type in any amount on the balance before clicking Save and Close.
Once done, record the sales. Then, deposit it to the clearing account.
Tap on Sales Receipt under Customers.
Fill in the necessary information, then select the clearing account created under the Deposit to section.
Click on Save and close.
If you'll record the payment for your expenses, enter a cheque and select the clearing account where you deposit the sales amount.