Post-TCJA, certain strategies that were once tried-and-true will no longer save or defer tax. But some will hold up for many taxpayers. And they’ll be more effective if you begin implementing them this summer, rather than waiting until year end. Consider these three: 1) Take steps to stay out of a higher tax bracket, such as accelerating deductible expenses. 2) Bunch medical expenses into 2018 to exceed the low 7.5% of AGI deductibility floor. 3) Sell depreciated investments to generate losses to offset realized gains.