There is an extensive list of deductions that can no longer be claimed under the new tax code. For instance, those of you who use your vehicle for work are no longer able to deduct your expenses for gas, meals, parking and tolls. Likewise, all miscellaneous deductions on form 2106 have been repealed, and things like union dues, work uniforms, and publications are no longer deductible. The article at the link below does a good job of explaining how the changes will likely impact your returns this year.
https://www.cbsnews.com/news/9-tax-deductions-individuals-can-no-longer-claim-in-2018/