INVEST on your user stories :)

Invest: Independent, the story should not depend on other stories

iNvest: Negotiable, the story could be changed before and during the sprint

inVest: Valuable, it should deliver value to stackholders

invEst: Estimable, (self explanatory, right?)

inveSt: Small, a story should be enough small to be planned/prioritized

invesT: Testable, should contains "how to test" or "acceptance criterias".