For its members only, Costco takes $70 off any set of four Bridgestone tires. (Click through and find a set at your local warehouse; all discounts automatically apply in cart.) Additionally, pay just 1 cent per tire for installation. (It normally costs $15 per tire for installation.) Combined, that's a savings of $130 on your next tire purchase. Deal ends August 18.
Note: Additional service and disposal fees may apply, varying by state.
Most taxpayers will see their tax bill go down during 2018. That could impact which type of account -- traditional or Roth -- makes sense for you.