You can carry groceries on your bike without a rack in many different ways. Some are listed below: 1. In your backpack. 2. In a saddlebag. 3. In a pannier. 4. On the fuel tank pocket or its surface. 5. In the top box. 6. Using a strap having a close buckle. All of these grocery carrying methods are discussed in detail in this article. You can read them for more in-depth detail.