To do LIST
Even if the lawn is hardly growing due to dry weather, mow it with the blades raised up high every two weeks. This will stop any weeds from taking over. Winkle out dandelions, too.
Be doubly vigilant about deadheading from now on. Doing this job regularly extends the flowering season for another six weeks or more with a bit of luck.
Harvest onions and leave them in the sun to finish drying, before storing in plastic net sacks in a frost-proof shed or garage.
Take cuttings of half-hardy perennials to root in trays on a shady windowsill indoors.