Problem with Shipping costs

[tropics_4]

 I've seem to have a fair amount of views at my listings but those views are not converting to sales. I think the problems is my shipping charges, but have not idea of what I should do to bring the shippig costs down. Does any one have any ideas? I've never asked a question on here before so I'm not sure I'm doing this correctly, but if you'd like to take a look at my listings so you know what I'm talking about, but ID is  ...  tropics_4  .... and I'm also not sure how I'm going to receie any reply you make...I'm guessing I'll see any reply in my eBay messages. BTW, my shipping question is about mostly about the clothing I have listed, not so much the vintage dishes, but I'm open to any ideas there too:). Also can anyone tell me what is the least expensive way to ship clothing within the US? BTW Thanks in advace for any ideas or assistace!