My Kroger Trip 4/21- paid $.03 in tax!

I went to Kroger yesterday and got the following:
3 Quaker Rice Cakes: $1 each
1 Angel Soft TP: $1
1 McCormicks seasoning: $1
I used: 3 $1 Quaker Rice Cake qs from 3/29 rp
1 $.50 Angel Soft q from 4/19 rp
$1 McCormick q from a previous rp (i can't recall the date of the rp insert)
Final Cost: $.03!!!