I have a very different take on lawn care. My lawn is full of weeds and moss and grass. I participated in No Mow May and now have some Pyramid Orchids in my lawn, which would never have grown if I’d kept mowing and weeding. I saw a butterfly on one that I had never seen before.
My viewpoint on lawns changed completely when I read The Garden Jungle (or Gardening to Save the Planet) by Dave Goulson. A beautiful perfect lawn of only grass is a desert for wildlife and insects. There is nothing there for them. Our natural lawn weeds, clover, buttercup etc have evolved to suit our native species of bees, butterflies, insects etc. The numbers of these is crashing due to habitat loss.
There has been a dry spell and this causes the moss to disintegrate and you can end up with scruffy areas. You can leave these alone and the other stuff will spread into them in winter. Or rake up the dead moss and sprinkle soil and grass seed in the area. September is best for this.
Or is it possible you have used some generic Weed and Feed product on it recently. This will certainly cause bare patches. There will always be more problems anywhere there is continuous foot traffic. Ie washing line. If you can move the line periodically this will solve the problem.
One of my greatest joys now is watching the bees on the clover. Gardening is moving away from the controlling nature to make it what we want, to gardening alongside nature to create a habitat for all life forms. Everyone needs to find their own level. I personally have made peace with greenfly and slugs, and now have a load more birds in the garden. Watching a dozen goldfinches eating the seeds off dandelions is enchanting.
And you know what is the absolute clincher for gardening this way. Far, far less work. What you lose in pristine perfection, you gain in wildlife. I haven’t seen a slowworm in years, if I saw one in my garden now, I would know I was doing something right.