The glories of spring bring with it for some the misery of seasonal hay fever.
One of the most helpful hints I ever heard and that I rarely hear spoken about is that before you got to bed rinse off your body and your hair with a quick shower. Your hair otherwise is a collection zone for pollen you have encountered all day long. You put your head on the pillow and breath it in all night long causing your symptoms to worsen by morning. This is especially important if you have been outside in the garden but is a good precaution to take daily during the allergy season.
Simple cost effective and so sensible but rarely spoken aloud.