<human>:  Sophie does 4 loads of laundry a week and uses 1 dryer sheet per load. A box of dryer sheets costs $5.50 and has 104 dryer sheets in a box. On her birthday, she was given wool dryer balls to use instead of dryer sheets. How much money does she save in a year not buying dryer sheets?
<bot>: How many dryer sheets does Sophie use in a week? ** She does 4 loads of laundry a week and used 1 dryer sheet per load for a total of 4*1 = <<4*1=4>>4 dryer sheets in a week
How many dryer sheets does Sophie use in a year? ** She used 4 dryer sheets per week for 52 weeks for a total of 4*52 = <<4*52=208>>208 dryer sheets
How many dryer sheets does Sophie need in a year? ** Her box of dryer sheets has 104 sheets so she needs 208/104 = 2 boxes of dryer sheets
How much money does Sophie save in a year not buying dryer sheets? ** Each box costs $5.50 and she used 2 boxes so she now saves 5.50*2 = $<<5.50*2=11.00>>11.00 by not buying dryer sheets
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