Get-SingleWeekDate.ps1

    function Get-SingleWeekDate
    {
    <#
    .Synopsis
        Get all dates for a specific day of the week on year forward. Please give me a better function name!!
    .DESCRIPTION
        Long description which is very short
    .EXAMPLE
        Get-SingleWeekDate -DayOfWeek Monday

        Outputs all dates which is a Monday from the current date
    .EXAMPLE
        Get-SingleWeekDate -DayOfWeek 1

        Outputs all dates which is a Monday with an integer input value from the current date. 
        The [System.WeekDay] enum translate 1 to Monday localized
    .EXAMPLE
        (Get-Date).AddYears(1) | Get-SingleWeekDate

        Outputs all dates which is a Monday, starting one year from now and one year forward
    .NOTES
        @toregroneng tore.groneng@gmail.com 
    #>
    [cmdletbinding()]
    [OutputType([datetime[]])]
    Param 
    (
        [Parameter(ValueFromPipelineByPropertyName, ValueFromPipeLine)]
        [System.DayOfWeek]
        $DayOfWeek
        ,
        [Parameter(ValueFromPipelineByPropertyName,ValueFromRemainingArguments)]
        [Alias("Date")]
        [datetime]
    
        $StartDate = (Get-Date)
    )

    BEGIN
    {
        $f = $MyInvocation.InvocationName
        Write-Verbose -Message "$f - START"
    }

    PROCESS
    {    
        Write-Verbose -Message "$f -  Finding the first occurance of the specified weekday [$DayOfWeek]"
        foreach($counter in (0..6))
        {
            if(($StartDate).AddDays($counter).DayOfWeek -eq $DayOfWeek)
            {
                $firstAvailable = $StartDate.AddDays($counter)            
                break
            }
        }

        Write-Verbose -Message "$f -  Looping through and finding dates"
        for ($i = $counter; $i -lt 365; ($i =$i+7))
        { 
                $StartDate.AddDays($i)
        }
    }

    END
    {
        Write-Verbose -Message "$f - END"
    }
    }