Things you forgot to take to the hospital?

I think I have everything. I tried not to over pack. Did you find it necessary to take a breast pump to the hospital? Also what’s are some things you wish you had or just random things I might need? For ex., someone told me to bring an extension cord because if I want to have my phone but it needs to be charging my cable might not reach. I’ve looked at a bunch of lists on Pinterest and a lot of then say different things.