Part of keeping fashion "Low Budget" is using your pieces in different ways. I'm working on this nowadays, so here's my girly white eyelet dress, used a bit differently.
Vest: $0 Vintage, took from mom's closet.
Dress: $15(? no clue, was on sale at Kohl's over a decade ago.)
Boots: $20 (clearance) Alloy
Total: $35