-some areas have organizations that provide certificates for genuine small, local businesses to display. Look for them, or if there is no such organization in your area, create one.
-think used and reconditioned-- cars, furniture, sporting goods. Some products just stand up better in spite of intentional obsolescence.
-Please mention more ways in the comments.
Change the Channel
The media play a huge roll in maintaining BIG-- business, consumerism, and belief in BIG and the system that supports it.
- identify the worst shows and let advertisers know you won't buy from them, and why.
-don't watch shows
-create your own content and channels
-Stop watching TV altogether (I'm still working on that.)
-seek out local entertainment-- theater groups, performers, clubs, music venues.
-join book clubs, writers groups, discussion groups
-stay away from the biggest internet websites/channels
Keith Farnish has written a book about Undermining. The idea is to engage in acts that disrupt, sabotage and undermine the system of Industrial civilization. I think it should be called corporate civilization-- which didn't hardly exist 250 or 300 years ago. Undermining can be risky, can even get you arrested, so it is absolutely not for everyone. Some examples: