My ordinary spade takes care of the edges so I don't need a half-moon edger. The spade has a flat blade, not curved (a curved one would cut scallops). You can buy hollow-tine aerators for spiking any compacted areas, but an ordinary garden fork will do, and many people don't need to spike at all if they don't have areas that get compacted.
Doncaster, South Yorkshire. Soil type: sandy, well-drained
Sorry @Plantminded , I wasn't suggesting that a half-moon edger would cut scallops, but a spade that's curved forward at the edges would. Some spades are like that, some like mine are flat so I don't need an edger as well, and no need to spend money on a tool to use maybe once or twice a year and take up shed space the rest of the time
Doncaster, South Yorkshire. Soil type: sandy, well-drained
Thank you @JennyJ, sorry, I misunderstood. I use my half moon spade quite a lot. It's useful not just for cutting the lawn edge but also for honing the side of a previously cut edge which has turned green with algae. A fine sculpting tool! It's just a shame that the lawn's not up to the same standard as the edging 😊.
My lawns all have block paver edging (except where one area meets the concrete driveway) so I just work around pushing the spade vertically between the grass and the blocks to chop off what's overgrown. Once or twice a year tops. I clip the edges with one-handed shears the rest of the time if it's looking shaggy. My sandy soil won't hold a vertical edge without crumbling.
Doncaster, South Yorkshire. Soil type: sandy, well-drained
On this YouTube video I demonstrate how I take care of my lawn's edges, using 3 tools: the border half-moon, the long-handle lawn edging shears and the "normal" grass shears.
Posts
I've been very pleased with these that I've had since 2016
https://smile.amazon.co.uk/gp/product/B0001IX7L0/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
Spring tine rake or scarifier to remove thatch/moss
Wisdom is not putting it in a fruit salad.
I live in west central Scotland - not where that photo is...