If people around you have already been using Uber themselves, then getting cashback on your rides might be a good alternative. Claiming cashback for your Uber trips requires similar procedures as getting kickbacks through online shopping, and the exact steps vary depending on the cashback site you use.
In most cases, you will have to register an account and book your Uber trip through a specific link provided by the cashback portal. Carefully check where the cashback discount applies to as different websites might work differently. Quidco, for example, only provide cashbacks to trips that are booked through desktops, which might cause some troubles for users who normally order through their mobile Uber app.