Great ideas. Our preference is towards long hikes but we have been doing some PNG when time is limited. Our natural handicap seems to be our team make up - 2 adults, a 10 yr old and a welsh terrier. Just getting in and out of the car is an event.
This summer we will have to plan and leave the dog behind and make a concerted effort at volume - just for the change of pace.
Regardless, we are all happier when caching as a family.