I'm sure many are aware, but Notice 2018-83 increases the limits for pensions and retirement plans for the 2019 tax year:
https://www.irs.gov/pub/irs-drop/n-18-83.pdf
Defined Benefit Plan: $220,000 to $225,000
Defined Contribution Plan: $55,000 to $56,000
Elective Deferrals: $18,500 to $19,000
IRAs: $5,500 to $6,000