DINKs in their 50s who are on track to retire early explain what being childfree has meant for their lifestyle and finances

• Wendy and Steve Thomas are longtime DINKs, which stands for double income, no kids.
• They didn't necessarily set out to become DINKs, but it's a lifestyle that's worked well.
• They aim to retire early and to keep traveling and pursuing their hobbies.

Wendy and Steve Thomas didn't necessarily set out to be DINKs, but it's a lifestyle that's worked out for them.

Wendy Thomas, 55, and Steve Thomas, 51, are a California-based couple in a growing legion of Americans who are DINKS — households that are double income, with no kids.