Is there a way to see when other people who have access to my quick books go to my quick books?

Yes, there is, fschnook. Let's use the Audit Log report to view user logs. It also records every transaction and modification made within the system. I can show you how to pull this up. 

QuickBooks Online keeps a comprehensive audit log that provides a detailed log of activities conducted by all users.

Here are the steps you can follow to pull up the report:

1. Hover over the Reports menu. Select Audit Log in the Business Overview area.
2. Set the Date Changed to your preference.
3. Choose the Sign in/sign out option in the Events sections.
    

Feel free to look through the entries for detailed information, including who made changes and the exact time of the modification.

For additional reference, check out this article to know the maximum number of accounts or users you can add: Usage Limits in QuickBooks Online.

Reviewing the role of each user you add ensures only necessary persons have the access they need. The approach above provides a comprehensive report to monitor their activities within your QuickBooks Online account, ensuring you can maintain control and security over your business financial data. I'm always here to ensure everything goes smoothly for you, fschnook. I wish you great success!