Perms and hair color. You can color hair that has been permed, but try to use a semi-permanent or 'no-ammonia' color instead of a normal permanent color (which uses ammonia and 20 volume peroxide). Have your hair permed first.
Mowing grass works best when the grass is dry, as grass tends to bend over from the weight of the rain, making it difficult to get a straight cut. It also clumps inside your mower cavity and on your lawn, which can lead to dead grass underneath the clumps if not raked promptly.
However do not fertilize immediately right after mowing. OK to mow in the morning, but wait at least until the evening to fertilize. Reason is when cut the ends of the grass blades need to dry, or scab over so to speak. The dust from the fertilizer can stick to the wet ends of fresh cut grass and burn the tips.