Deductions & credits

(1)  You need to make sure the receipts are qualified.
<a rel="nofollow" target="_blank" href="https://www.irs.gov/publications/p526#en_US_2016_publink1000229843">https://www.irs.gov/publications...>

(2)  Are all of the contributions "similar items"?  If so, you would need a qualified appraisal because it is over $5000.
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(3)  If you gave 10 times, and each time is "less than $600", how can the total be $6000-$7000?