Recycling is only as good as is done, so do so carefully. A single item in the mix that does not belong can ruin an entire batch.

Before you add a piece of plastic to the recycling bin, take a moment to be certain that it actually belongs in the recycling bin and not the trash. That means finding the triangle. If it is not there, put the item in the trash no matter what you think it is made of. 

Again, if you have any doubts check with Earth911. They have the information on all items, recyclable or otherwise. Earth911 should be right there among your favorite and most often-used websites.