Old Navy Tank Tops Just $2 TODAY! The links in the post below may be affiliate links. Read the full disclosure Here.April 29, 2017 by SMFM Leave a Comment Who needs to stock up on tanks for the summer? Today (4/29) only, head over to your local Old Navy to score Women’s Tanks for just $2 – regularly $10.94! Please note that this offer is valid in-stores only. Even better, save 20% off (almost) everything storewide with this mobile coupon!