I posted this over on the June 15th thread as well, so my apologies to those who see it twice.
Our travel plans will have us driving from home to Atlanta the day before our flight to BCN. My brother lives in the ATL area so what we have typically done is meet him and have him keep our car for us while we are gone. Because we will be gone for a month this time, that's a long time for him to have our car parked at his house - and his driveway is such that it makes it harder for him to get around with the extra car in the way. Because the day we fly out is also his birthday, we planned to just stay at a hotel near the airport rather than staying with him so he wouldn't have to go out of his way and miss part of his work day to haul us around.
Anyway, I had looked at one-way rentals for a vehicle to take and come back. When I checked, we could get a good rate on a one way from home to ATL, but from ATL back home was nearly 4 times as much - yikes - put it out of my price range. But today when I was thinking that I needed to confirm with my brother about our plans, I decided to check again and found that the return rate is nearly the same rate as the going rate, so I went ahead and made reservations for one-way rental vehicle to get us to the airport in June and another one to get us home in July.
We are staying at a hotel not too far from the airport that has a shuttle service, so our plan is to check in the hotel, meet my brother for dinner, and then return the rental car and take the shuttle back to the hotel. Then take the shuttle from the hotel to the airport on the 12th when we fly out. Then when we get home, we'll pick up the rental car and then spend the night at my brother's house before driving home the next day.
This will keep our car in our garage, out of the sun and other weather elements while we are gone. And we don't have to pay for parking at the airport, etc., and no inconvenience to my brother (see what a good sister I am?!) This is the longest vacation we've ever taken.