B: We may give special promotion such as Buy 2 get 1 or Buy 1 and 2nd get 50%off.
C: Sound good, That can help our selling faster. And if we offer as "if old customers suggest their friends to buy our products then the old customers will get a point".The point that collect for reward or Big surprise.
B.And we can offer the gift for become our member, first buying will get extra discount like 15%off plus special birthday gift.
C.And one more thing improve our service, I think after sale service is also more importance. Customer will get the good experience with our company if we treat them as a family like follow up after 1 month,ask them about their opinion. These will help us improve our products also.