For larger lawns, you can save worrying about that power cord by opting for petrol lawn mowers. These tend to have a bit more ‘oomph’, making them a good choice if you have to tackle rougher areas, rather than a bowling-green lawn. If your garden is a bit lumpy and bumpy, look out for a model with larger wheels, which can cope with rougher terrain. And if you want to save on people power, consider a self-propelled petrol lawn mower, with self-drive front wheels, which will help itself along.