Meanwhile, though a lower income level will probably mean your income taxes will decrease, you'll still be on the hook for property taxes. And those will probably keep growing over time. If your annual property tax is $3,000 and it grows at 3% each year, it will hit $5,400 in 20 years.
Your home insurance costs will rise, too, along with your car insurance premiums, the cost of heating and cooling your home, groceries, and most other items.
And finally, whereas you might expect retirement to be a time when you're no longer raising children and supporting those dependents, you might still find yourself occasionally -- or routinely -- helping your loved ones out financially.