The Great Escaper

This is Lucky.  She is our cat who waits by the door and will sneak out any chance she gets.  She will race over to the door if she is lying on the couch and hears Hunter coming up the steps just so she can try to escape to the great outdoors.  Today it was really bad.  She got out at least three different times from Hunter going in and out constantly to get water, go to the bathroom, get a toy...you get the point.  And the last time she ran.  She was out for about an hour and we couldn't find her (Ok, I really didn't try too hard because I knew she'd come back eventually.  And I was sick of chasing her around or waiting by the culvert until she came out.).  We had to go to town because we had other commitments and there was no way we were going to find her.  She wasn't in the culvert or the garage or under the neighbors car.  And, we were already late.
So, we left the garage door open a little bit and drove off with a little boy who was extremely worried he had lost the cat forever.  I reassured him that she wasn't gone, she was just playing somewhere.
After being gone for 3.5 hours, Brody and I came home (Hunter went to the races tonight) and Lucky shot across the road from the neighbors house.  She was being chased by their cat-serves her right.  I pushed the garage door opener, but to my luck it started going down.  Lucky bolted off in the opposite direction and was off again.
We pulled into the garage, I got out, talked to the neighbor and she said that Lucky had been there all evening but just didn't know where she belonged.  I told her that Lucky is an indoor cat, but has been very sneaky lately.  I raced over to the other neighbors and Lucky was under their car.  I couldn't reach her.  I quickly went back to the car to get Brody out and set him down.
To my luck he raced to the back yard so I had to chase him down.  I caught up to him and then we called Lucky and she finally went into the house.  Phew!  Brody and I went back to the car to get my purse out but I couldn't carry everything.  So I set Brody down and he took off running again...ahhh!!  I quickly grabbed what I needed, threw my purse towards the door leading to the house and ran to catch him...again.
I am sure the neighbors were very entertained as they sat out on their front porch.  If anybody wants a cat, they can have Lucky.  Ok, not really.  We would miss her too much.  But I would love any ideas from people who may have a solution to our cat who stalks the door in hopes of going outside.  I am tired of looking like an idiot running around our yard and the neighbors yards chasing that darn cat.