You thought you had enough toilet paper to last a long time… until you checked in the bathroom and discovered you only have one small roll left. Unfortunately, in most grocery stores across the country, toilet paper might be sold out. So, what do you do? Thankfully, you can set alerts to figure out when these hard-to-find items will be back in stock. If you’re trying to avoid visiting the supermarket or grocery store in person, then ordering groceries and essential products online is a great alternative. However, when products are out of stock, you can’t wait around forever wondering when it will be back in stock again. Thankfully, you can set up an alert that will notify you when a product is back in stock and will be available to be purchased. There are a few different ways to set up alerts depending on the retailer. For example, if you go to Walmart’s website to purchase an item that’s out of stock, you’ll see the “Out of Stock” notification. However, for some products, right next to the “Out of Stock” notification is a blue button that reads “Get In-Stock Alert.” Once you click that alert, you can then submit your e-mail address and Walmart will e-mail you if and when the product is available to purchase. If you’re trying to buy a cleaning product on Amazon but notice it’s no longer in stock, you should see an “Alert Me” box. If this service is available for that particular product, you can click “Sign up,” and Amazon will alert you via e-mail to let you know the product is available. However, Amazon notes that “signing up to be notified does not reserve a copy of this item for you. When you receive the e-mail informing you that the item is available, you’ll need to return to Amazon.com to place your order.” With Target, you’re able to set up notifications or use an app. “When an item is out of stock, we may offer the option to receive notifications when it’s back in stock,” according to Target’s website. “If this is available for an item, the Target.com product details page will display a ‘notify me when it’s back’ button. If you’re using the Target app, it will be a ‘notify me’ button.” Additional information can be found on its website, but Target also notes that “opting in to receive notifications doesn’t reserve or guarantee item availability, so you may want to act fast in the event the item goes out of stock again.” Unfortunately, many stores including Costco, CVS, and Home Depot, don’t provide in-stock alerts.