How do I attach my western saddle bags?

This depends on the weight that you are carrying in your saddle bags, you can attach your saddle bags by binding them with leather strings. I think its much better to use leather strings as you are carrying a leather bag.

Depending on what kid of saddle you have it may or may not have the ties you need. For example, my barrel saddle does not have them, but a ranch saddle or trail saddle will. You can very easily have them put on though, You will likely have to take it to someone who does leatherwork or repairs saddles. The ties from the saddle should go through the holes in the sides of the saddle bags