You could consider selling your Walmart card by listing it on Craigslist, Kijiji along with other local classifieds online probably a classifieds.
3) Your gift card they can double to purchase video games and toys for your kids. This is not too bad in my personal. https://Groups.Google.com/g/giftcard-mall-my-gift-info/c/lJb4jNQqwjY