"Write things down" is probably the most important, in a world where people think Agile means no documentation. Our team has lots of conversations during groom

"Write things down" is probably the most important, in a world where people think Agile means no documentation. Our team has lots of conversations during grooming and never writes the notes down that we talk about which is very frustrating because it's so easy and has a huge effect on the outcome. One that I'd add is invite everyone to the same meetings or put them on the same e-mails, don't have one-off meetings and conversations with certain people because it leads to half the team being in the dark.