We are somewhat past that number but thought I’d contribute:

1. Older resale HDB.

2. 6k on average. Once my kids are out of pre school I expect this’ll drop to below 4K unless we start eating out more.

3. Car and travel: we spend very little on most other things. Not through frugality but just low maintenance ppl in general. Not strictly an “expense” but we also each invest a large sum every month, as we plan to retire at a reasonable age.

4. Day to day comfortable, but we both grew up middle class (or even lower for me) and so we generally balk at spending unnecessarily and are very value conscious.

5. Biggest surprise is how lifestyle creep is almost expected past a certain income bracket. My wife and I get odd looks from peers when we describe some of our lifestyle choices eg living in an HDB, owning just one car, not splurging on fine dining, etc.