No, I don't try to support local businesses other than my favourite agricultural/pet goods and feeds supplier whom I always go to because it's family run and they have or will get for you everything you could possibly want, with special offers and everyday competitive prices. Other local businesses charge ludicrous amounts - the butchers are the worst offenders, the fresh fish shop is a very close second, and the stationer is both expensive and very limited in stocks of just about everything. The local women's clothing shops make me unsure whether to laugh or cry - jackets at over £300? I think not! It's not, in my opinion, feasible for anyone on a limited budget to overlook the big supermarkets, for food, household supplies and clothing. And you can't beat amazon or eBay for entertainment items, or Argos & Lidl for household goods.
It may be harsh, but the world moves on - we're in a new "Spinning Jenny" era and only niche crafts like you find on etsy.com or at local craft fairs are going to survive so far as I can see.