I had a history professor once who would not talk about anything that was unrelated to European history before starting the lecture for the day. The only extra word he would at the beginning of class was, "O.K.". In that spirit, let's begin what I consider to be my life's mission: boring you to tears.
Moss is a big problem where I live. Those home owners like me who have trees which shade their north-facing roofs have to treat their roofs with chemicals at least once a year to control the moss that tends to grow there. This year, I have chosen to treat the roof twice. I sprayed it last Spring. It's Fall now. So, today the kids and I went over to Home Depot and bought this great moss killer that comes in a bottle you can connect to a hose. It automatically mixes the chemical with the water as you spray. The Home Depot has figured out to place someone at the entrance who knows where things are, and I asked this person where the moss killer was. I followed the man's directions, picked up the moss killer, and used the self-checkout stand. Mercifully, I was able to get out of there in about ten minutes.
I got home with the moss killer and got up on the roof with the hose attached to the bottle. I sprayed for quite a while but the level of the chemical in the bottle did not drop! The sprayer did not work! Luckily, I had an old bottle from my Spring roof treatment session. I poured the newly-purchased moss killer into the old bottle, attached the sprayer and sprayed the roof in just a few miuntes. I'm sure glad I kept that old bottle.