After you file

If you have an item for which you think the valuation in Its Deductible is too low or an item that's not listed in ID, you can go to ebay and check the price (sold listings) of identical items.  You may use those values (put them in as "add it" items).  If I was donating a sweater that has sold for $21 on ebay, in the "item" blank on the add it function, I would put "sweater ebay value."  I have used Its Deductible for years and this has never been questioned.  ID uses ebay as one of its "standards" of valuation.