I love a bargain, too. Here are the places I've found to be worth while:
Marshall's...great for clothes, shoes, gifts, housewares
16200 SW Pacific Hwy
Tuesday Mornings and the Dollar Tree are next door to this Marshall's too.
Big Lots...closeouts galore. A couple of years back I found an inftatable hot tub there for $60 bucks. I can't find one for less than $400 now on the internet.
18565 Southwest Tualatin Valley Highway
Beaverton, OR 97006
Ross...another major close out store. I like to go here for their art/decorations and house supplies but they have stellar deals on name brand clothes as well.
8815 SW Cascade Ave
Beaverton, OR 97008