Hi Fishcouple,
What I've noticed with USPS is that they have eliminated the punctuation. For instance, instead of St. Dr. or Ave. they suggest St Dr Ave and the same with PO Box. Either way, it will get there with or without the periods. I also noticed that even if the customer spells their name without using capitals, it doesn't matter because everything on the label is now capitalized, so I don't have to go in and manually capitalize their first and last name anymore.
<3 Jewel