This is the time of year for UPS to increase their shipping prices. For reasons known only to UPS this is not a straight percentage increase, but ranges from 5% to more than 10% with all sorts of strange anomalies (i.e. 13 lbs is much more expensive to ship than 12 lbs). I have updated the shipping cost calculator and my website to reflect this price increase.
The price increase only affects express shipping. At this stage economy shipping stays the same price as last year since USPS has announced that there will be no price increase for 2015.
This UPS increase does make Sea freight more cost effective so the cross-over point is now 50 lbs (it used to be 100 lbs). I have updated my shipping cost calculator to reflect this.