What Eric Said, And:
-The sweatproof mat you use ought to either be disposable or washable.
-If you use a fan to simulate the slipstreams' -wind- cooling effect, be aware of furnishings and flooring downwind... think washable and sweatproof.
-After your workout, wipe down both your bike and your trainer. With front-wheel drive, the trainer is in the line of fire: like, for example, from saliva -when your breathing gets fast and furious. I use furniture polish on a soft cotton rag.
-Check your stand, trainer or rollers every week, just like you check your bike. I don't know about you, but if my weak effort can loosen bolts over time, your efforts certainly can.
-Steve