(Image credit: Getty Images) Question : We lived below our means our entire careers. We're now 67 with $5.8 million and about to take Social Security, which will provide $5,000 a month. I want to spend $300k on home renovations for our cramped and outdated house. I also want a new car. My wife is too nervous to spend so much. How do I get her to loosen up? Answer : Many people who retire with large sums of money get there via hard work, frugal living, and diligent saving. If you've reached the age of 67 with $5.8 million saved, you're most likely looking at a comfortable retirement , especially if you're used to living modestly. Plus, if you have $5,000 a month in Social Security coming your way, you may not have to tap your savings too heavily to cover your essential needs. That gives you more wiggle room to really enjoy that money and splurge on things that enhance your quality of life. From just $107.88 $24.99 for Kiplinger Personal Finance Become a smarter, better informed investor.…