What retirement planning advice is most relevant for people in their 30s?

[Nora.L]

I'm 34 and finally feel like I have my basic finances under control. Now I'm thinking more seriously about retirement planning advice. What retirement planning advice is most relevant for someone in their 30s? I know I should be investing, but beyond "start early," what specific strategies should I focus on? How do I balance retirement savings with other financial goals like buying a house or saving for kids' education? Looking for practical retirement planning advice that accounts for the specific challenges of this life stage.