If your plans include travel out of the US, you need to pay attention to these restrictions and additional requirements.
You will need to have a COVID-19 test to come back into the US. Plan for the time and extra expense.
Make sure you know the guidelines for the country where you will be traveling to, as many are different.
You may need to quarantine.
Rules change daily it seems. Check with the US State Department before you plan your trip, before you buy tickets, and before you leave for the airport.
You can even register with the State Department so you receive alerts and info while you are traveling. Check here https://travel.state.gov/content/travel/en/traveladvisories/traveladvisories.html/