It's fine to mow little and often. Just keep the cut a bit higher. And a lot depends on what your lawn is for. I have almost half an acre of grass and I cut it fairly long about once every six or seven days in summer. The bits we sit out on or which are next to paths are kept free of clippings as we don't want them all over the house. The rest is a bit rougher and contains things that you might regard as weeds if they were on your pocket handkerchief picnic lawn. On the whole we sit out mostly on paved areas. The soil is clay and the climate is damp and we get to park our arses on grass only a few times in the summer. Anyway, I'm of an age now when, if I sit down on the grass, I can't get up again...