The first Monday and Tuesday of the festival is 2 for 1 day for all companies that sign up to it; which will be most. This year it is Monday 6th and Tuesday 7th. So basically if there are two of you going to an even then each of you only has to pay half.
If you are going to 5 or 6 shows with someone, the other way to do it, is to buy an Edfringe membership, The membership costs £35 for up to 15 2-1 tickets and £70 for up to 25 2-1 tickets.
Wonderwall 