for nate...

dloadCleanup.ps1

<#   
.SYNOPSIS   
deletes files on login by file age and a list of file name regular expressions
    
.DESCRIPTION 
srsly man, that's all it does.
	
.EXAMPLE
.\dloadCleanup.ps1
#>

# change these values to suit your needs
$regexList = @("^imageLinkProcessor.*pdf$", "^message.*mp3$")
$ageInDays = 14
# /change values

# don't change these
$downloadsPath = "$env:USERPROFILE\Downloads"
$deleteBeforeDate = (Get-Date).AddDays(-$ageInDays)

foreach ($regex in $regexList)
{
    $offendingFiles = Get-ChildItem $downloadsPath | Where-Object {$_.Name -match $regex -and $_.CreationTime -lt $deleteBeforeDate}
    foreach ($offendingFile in $offendingFiles)
    {
        Remove-Item -Force $offendingFile.FullName
    }
}