Bike vs. Garage

So... I did it. The thing I said I would never be careless enough to do: Drive my car into the garage with the bike on top.




This is a photo of just one of several ruined rack components. I'll leave it up to you to imagine the bike.

I've heard all the tricks about hiding the garage door opener in your bike glove so you'll be reminded, etc. The problem with these ideas is that you have to remember to do them. If I have the presence of mind to remember something, I'm darn well going to start by remembering that I have a bike on the roof! No, I need a tactic that doesn't require conscious initialization each time. Closest thing I've seen is those red flags that you hang on the inside of the garage door, so that when it goes up the flag drops down and flashes a quick warning, like, "Hey! You! Look up! Guess I'll have to try to make one of those.

Of course if I were living more simply I wouldn't have the door wired up to a motor. I'd have to get out of the car to open it and then I'd probably notice that bike up there, wouldn't I?

What are your tricks to forestall this particular kind of disaster?