I recently made major changes to my shipping and handling. A little background first...
In January, I had to unfortunately raise my International shipping rates. This was due to a change in the Postal Regulations. If you send merchandise to a foreign country the item can no longer go as a letter. It is considered a package. It used to cost $1.15 to send a stamp to foreign destinations. Now the rate is about $10.00. I have partnered with a shipping company that brings down the rate a few dollars so my rate is not as bad as it could be. Also, I must now fill out Customs Forms for all international orders. Another bad side effect of this change is that I must buy computer vended postage. I can't use nice stamps on the envelopes which I always enjoyed doing.
So, I used to to have tiered shipping rates. The rates were based on price for the U.S. and Weight for International. I have a feeling that these rates may have been causing some hesitancy for some of my buyers to make a purchase. I finally decided to go to a flat rate for both U.S. and other countries. My rate is $2.00 for U.S. and $8.00 for International Addresses no matter how much you buy or how much the envelope/package weighs. Also, If you buy $600 or more, shipping is free.
I really try not to make a profit on my shipping. I just want to break even. Most buyers don't realize that envelopes, tape, paper for the invoices, ink for the printers, PayPal Fees/Credit Card Fees all add up. Notice I didn't mention postage in that list?
Unfortunately, shipping and handling charges are part of online buying. Wish I didn't have to deal with them. That is true whether I'm a buyer or a seller.