A net for your sweat.
You wouldn't expect that an apprenticeship at a local bike shop would reveal lessons in chemistry, but nature becomes apparent the first time someone walks their bike through the door for a spring tune-up after a hard winter of indoor training. Generally, this is when the wily shop veterans shove the newbies out onto the floor to intercept the customer they know all too well. Caustic sweat is a fact of life for some folks. That's why the Blackburn Sweat Net is a good idea if you're planning to spend a few hours or more on the trainer this winter.
It will protect your bike frame from the shower of sweat that drips off your face when you hammer down. Hell, it's a good idea even if your sweat doesn't seem to produce a corrosive effect on the alloy and steel component parts of your bike. Keeping your bike clean will be that much easier, and a clean bike is a well-running bike.
The Blackburn Sweat Net is made with web straps that cinch on the handlebars and seatpost. It stretches along the length of your top tube to protect your bike frame and components. When it gets yucky, simply throw it in the wash with your kit.