How do I figure out what child care and baby bills will actually cost?

What people tried

Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.

1. 1
   shifting daycare savings toward college
2. 2
   controlling what is spent on non-necessities
3. 3
   keeping activities within reason or finding options through the school district
4. 4
   using hand-me-downs and buying second-hand
5. 5
   Cutting down on eating out and canceling vacations
6. 6
   Skipping expensive activities or double-priced camps
7. 7
   Waiting until children are in public school or out of diapers to spend on discretionary items

In their words

Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.