Let's say I bought something, entered it as an expense. A couple months later I returned that item. How do I enter that? I can't in expenses.

Hello, @richardacandelor. 

You can create a vendor refund to record the refund you've received from a vendor.

Here's how:

1. Click the New ⨁.
2. Select Vendor creditor Receive vendor credit.
3. In the Vendor drop-down, select your vendor.
4. Depending on how you record purchases with this vendor, enter the Category details or Item details.
5. Click the Save and Close button.

Just make sure to associate the refund to the same expense account you've used in recording the expense. You can read through this article for step-by-step instructions: Enter a refund from a vendor.

On the other hand, you can refer to this article to track credits you've received for future purchases: Manage Vendor Credits.

Thanks for giving me the opportunity to help. Wishing you the best with your business endeavors. Have a great day ahead.