It is a good idea and always welcome. But Ivar may need to adjust his hours to comport with how long it takes a load of laundry to dry. You cannot lock the office and leave if someone still has laundry going - or can you? I will leave the issue of coin operation, pay per load, donativo, or gratis use to Ivar - but he DOES need to make a living. So, let us all be reasonable and graciously accept his choice of solution. If you do not like it, there are other solutions in town...
Also, in my considerable experience, clothes, even technical fibers, take longer to dry than to wash. The only way to overcome this is to: (1) invest in a washer that has a really high speed spin / extraction cycle to remove as much water as possible (some folks can then opt to take the clean, still damp clothes and hang them elsewhere); and, invest in a dryer with a minimum TRIPLE capacity of the washer. The more the clothes can "fluff" and spread out in a dryer, the faster they will dry - especially as one must use low heat on all synthetic fibers. N.B. - I am the "laundry meister" in out household.
Final point, this is likely to be a very popular notion once the word gets out. The more services Ivar chooses to offer in his tiny office, the sooner he will need to find a larger space. He might need more than one washer and at least one monster dryer. Also, given the volume of pilgrims, I believe that there will be plenty of work to spread around to the Laundry Center and the new Welcome Center, plus the several pay-per-load lavanderias in town
Ivar - Thanks for all you do...we ALL appreciated it very much...even if we do not often express it. Let me know if you need a volunteer laundry manager... ;-) Seriously, I work for room and board...
Buen Camino!
Tom