Use this $1/2 Spic & Span coupon to get inexpensive antibacterial spray from Walmart.
Spic & Span Antibacterial Spray – $0.97
Buy two and use $1/2 Spic & Span Products Printable Coupon
Pay $.47 each after coupon
Walmart prices vary by store, so it might not be this exact price – but it will be close.