Each application may have an attached "application fee"; these can range from $20-$100 per school. This can become very costly when applying to more than one school.
Along with application fees, there is a charge for graduate exams (ex. GRE = $140.00, GMAT = $250.00), and you also must pay to have your test scores sent to schools. Most exams have an upward limit on the number of schools to which you may forward your scores without paying an additional fee.
Sending transcripts usually cost a few dollars for each copy requested, and some schools want more than one copy. At Western, the transcript cost is $4.00 for faxed or mailed request, and $6.00 per transcript for an in-person request.