Hellobee Boards

I can remember things like "oh she used that a ton!" Or "we hardly used that", but specific number if months would be a lot harder.

Swing - 4 months for both LOs.
Exersaucer - from months 5-9(ish) for lo1, months 6-onwards for lo2
Highchair - from 6m to 2.4 years for LO1, month6-onward for lo2
Booster - switched at 2.4years for LO1.
Moses basket - month 4-onward for lo2.
Beco Gemini - I think LO1 was 7 months. Still use it occasionally.
K'tan - only used it once or twice for LO1 at 4 months, & again only occasionally for LO2 in the first 6 weeks.
Infant car seat - birth to 15 months for lo1, still using it at 7 months for lo2.
Single stroller - birth (with carseat) until 15 months, then gave it to XDH when we split. He still uses it for lo1 at 2.5years.
Double stroller - birth for lo1, & 2yrs for lo2. still using it. (Obviously)
Playmat - still using it from birth for LO2.

I think that's all the big baby gear??

Nope. I just use things until we're done with them. I don't keep track of a lot of specifics.

Nope! Haha I remember the swing & RNP because it was so sad when they had to be packed up, otherwise I have no idea.