What is the best way to manage a group/team of 2-4 people?

If I am working on a group project or living with roommates, what is the best way to make sure that we are all on the same page with what we have to do?
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Any.do 3.0

Organize all aspects of your life with Any.do

Ryan Hoover44Founder, Product Hunt · Written
Some people use messaging apps like Slack or Facebook Messenger, but it lacks structure for tasks. Check out Any.do. It supports shared task lists, which could be used for paying rent, buying groceries, dinner dates, etc.
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