Make sure your rails migrations work, thank you.

Rails migrations are the ugly stepchild of most projects, even though
actually making them work correctly saves so much time. Even though they seem
like one-off scripts, and also are most of the time when you do need to run them
more than once you are already in a bad place, so be sure that the migration you
wrote, when there was time is not making it worse.

At least doing a quick testing of the rollback is worth your time, in all cases!
So just run

$ rake db:migrate && rake db:rollback && rake db:migrate

When creating a new migration, thank you, you are awesome :).