Currently I use a backpack with a cover that keeps my things dry, sometimes I have it on my back, sometimes I use bungees to strap it to my rack. Many people tell me to buy a $80-$200 panniers, even other mustachians. To me, this seems very unmustachian. A backpack can be found for $15, bungees for $5 and a waterproof backpack cover for $5. Why would you spend $150 for something to perform the same function as something you can get for $25? Bungeeing my backpack to my rack is a little time consuming and inconvenient, having it on my back is not the most comfortable, but surely the slight inconvenience or slight discomfort is preferable to spending an extra $125? What are your opinions?