Joined: Mar 2015
Posts: 1,106
Likes: 518
From: New Zealand
Bikes: Gunnar, Concorde, Peugeot 753, Marin, Pete Tansley, Rocky Mtn, Worldrider, Francis Quinlan, Bob Jackson, Winora, Avanti, Klein, Quintana Roo, Shogun, Carlton, Emmelle, Specialized
Kool stop eagles as mentioned are amazing and worth it, but the other thing you can do is run the brake pads along a file or sand block to get to fresh rubber (easy to feel with a fingernail, and see, what is soft or not). That helps a lot if you don't have new pads.
Also clean rims -really- well with isopropyl after soap/water.