Delivery Services

When most postal rates rise on Monday -- among other things, mailing a first-class domestic letter will cost 2 cents more -- Washington will be depending on businesses like PouchSmart Inc. of Santa Monica, which still considers the post office to be the best option for delivering its products. PouchSmart designs flexible pouch packaging with a resealable spout, such as a single-serve juice container. Its products can also be used in other applications, such as a squeezable applesauce pouch.