Ditto.
DD and #2 will be 22ish months apart (Im due in a week).

Got rid of the bottle (becuase you're a big girl now!)

Started toilet training (first wee and poo in potty yesterday actually!).

Getting rid of the dummy is going to happen soon but she only uses it in bed anyway.

Moved into a single bed (skipped the toddler bed) at 16 months.

Installed cot and car seat etc months ago so she is used to things that 'belong' to the new baby

Giving her more responsibility and etc - for example putting her laundry in the hamper, putting her shoes away, setting her place at the table etc etc - and telling her that it's what big girls do and that she's going to be a big sister.

Oh, and got a 2nd hand double pram :-D