Some of the men footwear between $10 to $20 range are a good bargain in my opinion if you can get your size. There are other product lines in the upto 75% discount category but I am posting only what attracted me.
David Lace-Up in Brown = $10
Brando Slip-On in Charcoal = $12
Asher leather slip-on casual in Dark Brown = $20.00
Thanks to PJC for highlighting that there is free shipping on orders > $50
You could add to your title the free shipping on orders over $50.