Some tips from the Adafruit customer forums – “Mouser shipping tips to save money”… Post yours in the comments!
So what I’ve been doing to help avoid these unexpected charges is just add a note to my order when I check out. I’ve received about 5 orders now, all very carefully packaged, all making the best use of space – and best of all – no more huge shipping charges! Woot! Now I’m saving about $30 an order.
…another tip with mouser – if you’re spending more than 150 or so, choose UPS ground. they’ll often upgrade it to 3 or 2 day air if you spend over (150? 200? 300? not sure precisely)