Originally Posted by
Dolphyngyrl
If you don't want to wash you can always cut off a snippet of fabric and test for running, than you know you have to wash but it prevents you from washing tons of fabrics you don't need to wash IMHO
No need to cut it to test it. Simply rub a couple spots with a damp Q-tip and if it picks up any color, it will run. On the other hand, if it doesn't, it's not a for-sure guarantee that it won't run...you may just have missed testing the spots that do. Another reason for pre-washing.