The truth is the higher the quantity of products bought the lesser the unit cost of the product.
1. Start with a large and profitable market. E.g. women's fashion, skin care, health products, fitness, e.t.c
2. Look for challenges people have in that market that you can provide the products that will solve such challenges.
7. Sell to them again
NOTE: The most important factor is to ONLY IMPORT products that people really want to buy.
ADVICE: You could try advertising the products before ordering, if the response is positive go ahead and order.