Before you ship check to see shipping times for Ground. Why pay for 1 or 2 day shipping if ground will get it there in time. Check UPS Ground shipping maps and Fedex Ground shipping maps, just put in your zip code and you can quickly see how many days the delivery will take.
Credit Ricky Van Veen, from College Humor, for this tip. After you use this a half-dozen times you start seeing the map in your head and you’ll know without looking. If you ship more than a little for your business it will add up.