If there is a chance that the person you match might decide to make their DNA results “private,” take a screen shot of the details of their match (including their tree) while it is still public. Sometimes for one reason or another a person decides to make some or all of the information they have attached to their DNA results private. If you wait to take a screen shot of that information it may disappear.
At long last! Genealogy Tip of the Day book is here.