That's ok M.S., the ID is another gem of a Seattle neighborhood and if it serves a Cap Hill resident, I think you're ok to post on here asking for information. Fortunately (or unfortunately), our ID isn't really that large.
I would say the primary areas for small shops selling all sorts of Asian trinkets can be found along Jackson or King Street in between 5th Ave and 7th Ave. Viet Wah grocery store also has a sizeable section selling random treasures. There's also a really interesting fish store if you're interested in odd shops — it's called Liem's I think, and I believe it's located in between Maynard & 6th on King Street.
Gossip Bubble Tea does some basic things, but if you walk down King Street towards the train station (West) about 200 feet, you'll find Ambrosia. If you like HK Style bakery items, Yummy House on 6th makes a variety of things (my favorite is the BBQ pork bun).
In Little Saigon (further N & E) — there is a Vietnamese sandwich shop called Seattle Deli (it's on 12th & Main, I think) that serves up one of the best BBQ pork sandwiches out there.