Azure Cost Learning from Experience after Free Trial Expires

Well, today I logged into my Bank account and I have I nice debit of "MSFT AZURE", although I thought I was very careful to turn off all the Apps/Slots I would not be charged.

https://azure.microsoft.com/en-us/pricing/details/app-service/windows/

Another lesson by experience, I was wrong if you have a Plan aka S1 you will be charged even if you do not have one service running.

Set-AzureRmAppServicePlan -ResourceGroupName $rg -Name $AppServicePlan -Tier Free