Is there any good reason why a married woman travels with condoms in her luggage on business trips???

No good answer that I can think of. IF you found these in your wife’s luggage, you need to have a long talk. It sounds like she’s not only cheating, but she’s made plans already. Does she go on these trips with the same male colleagues all the time? Does she go to the same place repeatedly? I suppose the only good thing here is she is trying to protect herself, & thus you, from any STD’s or unwanted pregnancies. Whatever she is up to, it’s something that youmust both deal with eventually. Good luck!