How many times have we heard this excuse? I went to the Hollywood MAC store with my wife and picked up a new bottle of brush cleaner and made an evening of washing my hair.
You would be surprised at the difference it makes in both water retention and the softness of the hairs themselves. I ought to wash mine soon too. Edit: as a side note, I also have one of those family crest tiles. I inherited it from my grandmother. I keep the matching stein in the kitchen window. This isn't a picture of the tile, but it's the same design:
I can tell a difference in the feel of the brushes after there cleaned with the MAC vs Dawn or shampoo. Definitely worth the $15 usd. It hardly uses any cleaner also. I acually put the crest there to hide the bottle of mouth wash. The WC tile has a story behind it I posted somewhere awhile back.