If you itemize your deductions you can either take the state and local SALES TAX deduction OR the state and local INCOME TAX deduction whichever is greater. There are a couple items like car sales tax you can add to the general sales tax table. That is mainly for people who live in a state without a state income tax.
Turbo Tax FAQ on Sales Tax
https://ttlc.intuit.com/questions/3148443-how-do-you-define-major-purchase-or-major-item-for-the-sal...
See IRS Schedule A page A-6 third column line 7 on what items you can add to the sales tax table. http://www.irs.gov/pub/irs-pdf/i1040sca.pdf
You can only add
1. A Motor Vehicle
2. Aircraft or Boat
3. A Home
Major purchases do NOT include:
-Furniture
-Jewelry
-Home electronics
-Appliances
