I've been scrappbooking since 1998. I have so much in the supply department that I could open my own scrapbooking store in my house! LOL
I try not to go out to scrapbook stores or craft stores. Even though I say I don't "need" anything, I always come home with something....I went to a LSS in Odessa, MO that I had not been to yet over the weekend, and I found something there that I really liked. She sold individual shaped brads for 20 cents each. I bought several - zoo shapes, sports themed (balls, bats, golf bags, etc.), pets, etc. I hate buying a whole pack of shaped brads and then ending up using 4 or 5 and having 15 or 20 leftover. I do enjoy the swaps on these boards because I can get a variety of things at a reasonable price.
Some of my favorite stores are Michael's / Joanne's (different stores but each has a 40% or 50% off coupon for one item practically every week), Hobby Lobby (which overall has the best sales in my area - right now they have paper for half price both packaged and individual sheets), Dollar Tree (which has their own line of scrapbook items - great packs of 6-8 sheets of patterened paper, stickers and lately have had brads and eyelets), Big Lots (which always has a lot of K&Company items for $1.00) and of course, several local shops.
I don't view many websites for ideas. I subscribe to Creating Keepsakes and find a lot of inspiration inside each issue. I have visited both scrapjazz.com and twopeas several times.