Right now at Target, Buy 3 select oral care items and get the 4th for FREE! It looks like the Colgate Whitening pen is included and priced at only $3.99! After sale and coupons, you can score these for only $1.86. These are normally $13.99 each!
Buy: 4 Colgate Optic White Toothbrush + Whitening Pen $3.99 (one will ring up for free)
Use: (3) $1.50/1 Colgate Optic White Toothbrush + Whitening Pen printable coupon
Final Price: $7.47 for all or just $1.86 each!