If you look there are a vast amount of gardening tools that you could buy not all of them are essential and several you can make yourself.
Use the handle of your fork or spade as a measuring stick by taping lines or using a permanent marker.
Make a dibber from the wooden handle of an old hand fork or trowel. Whittle the end to a blunt point.
Use the wooden handle of an old broom cut to size for your raised bed and press down in the soil to make straight planting trenches the depth you need.
Compost scoops can be made by cutting a large milk bottle at an angle below the handle.
Spray misters can be made from well washed non-toxic cleaning spray bottles.
A screw on watering nozzle can be bought to fit onto plastic drinking water bottles or you can pierce holes in the cap using a nail or a compass.