Thanks bsmity:
Never thought about doing this — just learned about it — will try it myself. When my heating unit went out on our dryer, the Fix-It guy that I called went into the dryer and pulled out the lint filter. It appeared to be clean.
We always clean the lint from the filter after every [...]

Tip from Susan:
After having to spend $100 on a new timer for a 4 year old dishwasher, I was told by the repairman that you should never turn the knob on your dishwasher when the door is shut. That sends electricity through the timer each time you turn the knob, and wears it out. So [...]