Walmart offers the Nerf N-Strike Elite 250 Dart Pack for $11.98. Opt for in-store pickup to dodge the $5.99 shipping fee. That's the lowest price we could find by around $18, although we saw them for $2 less in our December mention. They're compatible with Nerf N-Strike Elite blasters.
Here's the secret to extending the life of a roll of paper towels.