Outrageous shipping fees

Letting off some steam. It's all well and good for keep offering those 10-15% discounts but really it serves as not to good after the shipping/handling fees. What the what. I know media mail is the cheapest way, one because I use a mailing service to mail stuff and for me to mail one of my books it'll cost under $2 US. It takes between one to two weeks to reach its destination, sometimes sooner. So why the hefty $4.99 For one book that lulu is now charging. Just a few books or bying in bulk is now not cost effective due to these outrageous shipping fees.
I must be charging too little for my books I guess. Well, that's all vent over.