When on the budget, you have to do anything to save your money and while shopping online convenience is the biggest benefit. You do not have to waste your money over fuel and plus, you get the most amazing deals.
You should ask a few questions to yourself before shopping online like is this website/seller trustworthy? Will they provide you with the same product as shown in the picture? Should you risk that little amount of money over something you do not even know is real?
That is why try buying from well-known websites and not only those that provide you with products at the lowest rates (do not just fall for that).