Walmart continues to offer the Oral-B Professional Healthy Clean Precision 1000 Electric Toothbrush with Travel Case, model no. 6905586550, for $35.97. This $20 mail-in rebate cuts it to $15.97. Opt for free Site-to-Store pickup to avoid the $5 shipping charge. That's tied with our mention from last week and the lowest total price we could find for the toothbrush alone by $10. It includes a handle, charger, refill brush head, and travel case. Rebate expires June 30.