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.
Water your lawn for about an hour immediately after you rake. Water your lawn for at least 30 minutes a day for seven days to make sure the seeds get enough water. Wait as long as you can to mow the tall grass -- at least four to five days -- so the seeds have time to become stable in the soil.