PeterHoh

valleygardener, I'm further north than Milwaukee, but we get some pretty aggressive weeds here, too.

As Billy suggests, smothering your lawn (killing it to save it) is the only organic alternative to spending hours each week (or each day) pulling individual weeds.

You don't need fancy fabric, but you do need to be willing to cover your lawn (or part of it) for a year or two. That's a pretty extreme option for a lot of people, but I've enjoyed the results.