Unfortunately, Turbotax is no longer providing a tool for tracking your donations. You can keep your own records in a notebook or spreadsheet. Be sure to include the date of the donation, the value, the condition (good, fair, poor) and a description with enough detail to be able to fairly determine the value. You will also want to document how you determined the value. (You might do comparison shopping at thrift stores, or Facebook Marketplace, or something similar.)
At tax time, you only need to enter the date and total value for all donations made to the same charity on the same day, you don't need to list items individually. You can make a general entry of "used clothing and household goods" with your value, as long as you have that detailed inventory in your records in case of audit.
