Hi Cathy
While I'm not in the full timing mode, yet anyway..., this one club we found was mentioned by many retired full timing folks.
The original 50% Discount Camping Club - Passport America Discount Camping Club
We where looking into using it ourselves as it is accepted at some of the State Parks near us. However in our case it excluded weekends. But during a week day it would work. Since our weekday camping over a year is somewhat limited we never got it.
State park discounts I'm sure vary by state. We use to have a Cardinal Camper card in Ohio. Cost was around $35 a year and in our case it paid for itself. That program gave I think 10% or 15% during the season and another 5% out off season. Even on weekends. The state must of been loosing on it as they stopped it a number of years ago. They now have a new program and we get points. These points all boils down to only about 3 to 4 nights free a year. Better then nothing but not as good as the older program.
The Good Sam's Club. We have been a member since 2004. It adds value to our camping experience but I have not yet saved a lot or much having it. And they for sure have a very aggressive mailing campaign. I think I get RV insurance, RV repair service and other service offers every month. The amount of mail is a bunch...
I know we have other members here who are Good Sam's Members and they may be able to offer savings tips they they have received. I do have the Good Sam Emergency Road side service. Never had to use it yet and hope I never do.... but it is there if I need it and closer to being able to handle a TT broke down on the road then the auto policies which do almost nothing on a TT.
Good luck
John
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2004 Sunline T310SR
2005 Ford F350 Lariat, V10 with 4.10
CC, Short Bed. Integrated Brake Controller
Reese HP trunnion bar hitch with HP DC