I have received two heavy parcels already this month. One from Australia (Tasmania) and the other from the United States (Arizona).
Now admittedly the package from Tasmania was from a fellow stamp collector, so its not unusual to receive such a lovely array of fairly recent issues but its the package from Arizona that takes the cake this month.
This was totally commercial in its nature - containing some books. The only difference was that I asked the sender if he would kindly use "real-stamps" when he sent the parcel.
Its nice to see such thoughtful franking used on commercial packages these days and a nice surprise, especially when paying over $33 in shipping costs - many more examples of thoughtful parcel franking can be seen here on StampBoards.