Should I leave my bike on my trainer? I have a cyclops fluid trainer, and for several months each year I only ride on the trainer. Every time I hook the bike up to the trainer, the trainer bends to accommodate the bike. Is it better for the bike and the trainer (overall) to leave the bike on the trainer for several months at a time or take it off the trainer everyday after my workout?

Here is a video of the bike being placed into the trainer: skip to the 1min,20sec mark.

Releasing the pressure between the tire and the roller daily is a no-brainer.
It will have no negative affect on your bicycle to leave the bike in a trainer for long periods, assuming you have the trainer properly adjusted for the width of your rear axle, and that you do release the roller from the tire as you noted.

In addition, in response to your comment, it will not affect the trainer at all, either.