can and were do i apply deduction for work uniforms and school supplies?
No, neither school supplies nor uniforms are deductible.
If the student is in college, and pays for books and supplies as part of tuition, then that amount is potentially available as an Education Credit.
Employee work uniforms are not deductible as an employee business expense on a federal tax return.
Education expenses for grades K-12 are not deductible on a federal tax return.