1 Liter Scope Mouthwash for $1.29 starting 08/20 at CVS! Posted by Harbor Master on 18 August 2017, 1:12 pm Tweet Starting 08/20, CVS will have 1 Liter of Scope Mouthwash on sale for $4.79. You will receive $3 in Extra Care Bucks when you buy one. Limit of two Scope Extra Care Buck offers per household. Click here to print $.50 off any One Scope Mouthwash 273ml or larger (Excludes Travel Trial Size) Deal idea: Buy One 1 Liter Scope Mouthwash for $4.79 Use: One $.50 off any One Scope Mouthwash 273ml or larger Pay: $4.29 Get Back: $3 in Extra Care Bucks Final price: $1.29