Boise is an amazing city - clean, well laid out and has an amazing retail base. I live 60 miles away in Oregon and am very appreciative of having this amazing place only an hour away!
As others have mentioned there is an Archivers and Hobby Lobby. In addition there is a brick & mortar LSS, White Swan, and a big Craft Warehouse.
. Also Mikes, JoAnn's (superstore located within a block of Archivers and Barnes & Noble) and a nice paper supply store called Paper Express. And there are LOTS of dollar stores with odd-ball, sometimes wonderful stamp related items.
Remembered another LSS, Paper Cottage. How could I forget them?!! They have a HUGE selection of all the latest scrapbook papers as well as ribbons, embellishments and stickers galore. The have almost zero stamps, but they make up for it in other areas.
I think you will be pleasantly surprised with the possibilities in Boise.
Good luck with the job search!