After reading the "Does homebrewing save money" thread. How about some ideas to save money.

Ask a local brewery for some yeast.

I put 10 gallons of good yeast down the drain today at work, after collecting what I needed.
We would give it away as long as it fits into our schedule, and you brought us a container.

Lets hear some other ideas.

same as breweries do it, larger quantities

1. dont buy kits, buy bulk split with friends
2. all grain vs extract
3. equipment can be very cheap- dont buy stainless everything, or new this/that. Dont buy equipment from the brew place. A 20 dollar 7 gallon brew bucket is 5 dollars at a food service retail/online.

Stainless brew pots/HLT/fermentors are a huge waste of money

4. pitch on yeast multiple times or harvest yeast.
5.make own PBW with generic oxiclean and  sodium metasilicate
6. build your own stuff vs buy
7. get old stuff from locals on craigslist-don't buy new
8. chase good beer not good equipment

- reusing yeast.  I'll often plan my batches so I pitch a new batch onto a used yeast cake.  This way I save on a carboy cleaning as well.  

- watch kit prices.  Sometimes the prices come out a wash, sometimes not.  I recently pieced together a recipe from a kit and the individual components cost $35.  If I bought the kit it would have been $50+ (Pliny the elder...lots of hops)

-prepay grain programs.  My LHBS offers prepaid grain cards.  By buying grain in advance you get something like $70 worth for $50 or something like that.  Whenever you buy grain they punch your card until you use it up.  Then you buy a new card.  

-grow your own hops.  I do it not to really save money, but it's fun and makes a great landscaping element.  I grow Cascade, Brewer's Gold and Saaz.  Good deal if you're into IPA's.

-second runnings.  When you make a big beer (imperial stout or something), after you boil that batch, sparge the grains again into another batch for a 'smaller' beer.  (Can be a totally free batch if you use homegrown hops and pitch on reused yeast)