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
She used 4 dryer sheets per week for 52 weeks for a total of 4*52 = <<4*52=208>>208 dryer sheets
Her box of dryer sheets has 104 sheets so she needs 208/104 = 2 boxes of 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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