Check your Dollar General clearance section for Suave Professionals 2 in 1 Plus Shampoo and Conditioner. I spotted it on clearance for $1.25. Use a coupon and pay just $0.25!

Remember, clearance can vary from store to store. 

Use $1.00/1Suave Professionals Shampoo or Conditioner (redplum.com)

Final Price: $0.25