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I take pride in buying lots of things online. It helps me both to save up money and to get nearly everything I need [on|in|of|by|without|for] leaving home. Instead [on|in|of|by|without|for] going to shops and supermarkets, I order goods on my smartphone via retail websites.

I always look for the biggest discounts. I try to be careful: if something's [on|in|of|by|without|for] sale, it's usually [on|in|of|by|without|for] great demand. It means that it can become out [on|in|of|by|without|for] stock sooner than I order it.

I always pay for my orders [on|in|of|by|without|for] credit card and wait for them to be delivered right to my flat.