Once a month I share my top five bargain finds from new and preowned to vintage pieces that are not only stylish but also worth the investment.  Here’s a roundup of my top 5 bargain finds for September! 1.  Vintage Straight-Legged Denim ( $39.99 ).   A new must-have pair of jeans are ruling the streets: high-waisted, straight-legged, cropped, and faded.…