Well you can try AliExpress. They sell products at cheap rates. Online stores in Pakistan. They are way too expensive and they take lots of profits. Other than this for clothes ,I will say better to find stuff at some thrift stores. They have got new products with tags too. Just a suggestion, though people don't like to buy at thrift stores. They think that things are old ,but if you give it a try then you will know there are many new branded stuff of western brands having better quality than local brands. My friend, he plays badminton and he plays professionally. He bought some shoes sometime ago from islamabad Sunday bazar Infront of Karachi company and those shoes were better than what you get at Nike Adidas official stores. Just give it a try. And for laptops and other stuff you will have to search them on market. Hopefully you will get a good deal.

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''Sufficient for us is Allah , and He is the best Disposer of affairs" Al-Quran