If you use water based paint to paint signs etc. (latex or Acrylic) You need to use this trick to get your Paint brushes clean in less than 10 seconds.

Take 1/2 cup of Your wife's liquid fabric softener mix it with One Gallon of water. now just vigorously move/swish your brush in that solution. This will even bring back life to old brushes.. plus they will smell clean.

When I was showed this I could not believe my eyes on how clean and fast my brushes came clean.
This only works on water based paint ect. it will not work on oil.