Charitable donations over $5000

We made a charitable donation of new and good condition clothes as well as household goods. Total value based on It's Deductible $6500. We have a receipt from the organization we donated to (giving date, general description as well as condition) and a list of items and cost of new items. Does this donation need to be appraised and what is the best way to claim this donation? No single item was over $500. Thank you.