I don't think it has been mentioned here yet; IRDC offers volunteers (corner workers etc.) $75 credits for each day they volunteer. Credits are transferable and you can use credits earned Saturday and Sunday to participate in an HPDE the Friday before the weekend. You can also have someone volunteer on your behalf the day you participate in the event. HPDE fees for IRDC's upcoming event at the ridge 8/23-25 are $195 so you can drive the HPDE Friday for only $45 if you volunteer Saturday and Sunday.
In addition to obtaining driving credits working corners is a great way to be part of the action. The corner workers for local club races are the same people that work corners for pro events like the upcoming Indycar race at PIR Labor Day Weekend. Working corners for the Indycar race would be an awesome way to experience that event.
Volunteer program information:
http://www.irdc-racing.com/uncategor...nteer-program/
HPDE Registration:
https://www.motorsportreg.com/events...-events-118663