You don't necessarily need to own all of these -- for example, a rototiller can be rented when needed -- but here's a primer on each tool and its uses.
LAWN MOWERS -
Types: Manual reel, gas push, electric push, riding, lawn tractor, zero radius and robotic
Purpose: Used to cut grass. Lawn tractors can be utilized as a multipurpose vehicle for hauling, plowing and other outdoor lawn and gardening tasks, as well.
Maintenance: The blades on all lawn mower models must be sharpened to provide desired results and even cutting services. All mowers except for the manual reel require regular oil changes and tune-ups to ensure the engine is properly functioning.
Types: Electric, gas powered
Purpose: Cuts a trench along walkways, driveways, around flower beds and other landscaping, giving the lawn a more pedicured look.
Maintenance: The motors on these pieces of equipment require regular tune-ups to ensure that they are well lubricated and operational.
Type: Electric, battery-powered and gasoline
Purpose: Removes grass and weeds in areas that are hard to reach with the lawn mower. These areas include around trees, under bushes and against buildings and walkways.
Maintenance: The strings on weed eaters need to be changed or refilled. Spark plugs must be checked. Most models require you to oil the motors properly, as well as the rotating mechanism for the string at the bottom.
LEAF BLOWERS -
Types: Gas, electric
Purpose: Provides an easier method of removing leaves and other light-weight debris from the lawn for easier clean-up. It can also be used to blow water from paved areas, rain gutters and snow from driveways.
Maintenance: Electric leaf blowers require minimal engine maintenance for tune-ups. Gas powered leaf blowers require regular tune-ups and maintenance to keep up with the demands of a two and four cycle engine.
Types: Core/plug, spike, gas-powered and manual
Purpose: Used to control the law thatch and reduce soil compaction so that water and nutrients can reach the roots of the grass and other vegetation within the yard.
Maintenance: When you are finished using the aerator, the spikes should be rinsed off with a garden hose and allowed to dry thoroughly if storing in a dark area. This will help to prevent rusting. Gas powered aerators will need seasonal tune-ups performed. If used often, inspections on oil, spark plugs and other components of the engine should be inspected.
FERTILIZER SPREADERS -
Types: Rotary, drop and sprayer
Purpose: Used to evenly distribute fertilizer over lawn and gardening surfaces.
Maintenance: When you have finished using the fertilizer spreader you will want to spray the holding compartment out with a garden hose. It is important to ensure that excess fertilizer is not left stored with the equipment, as this can cause explosion hazards. Make sure sprayer model spreaders are not clogged by flushing clean water through the nozzles
Types: Various shapes for different tasks.
Purpose: Used to remove leaves and debris from the lawn, under bushes, in flower beds and other areas where debris may gather
Maintenance: Spray the rake with a garden hose when you have finished using it and before storing it. If the forks for the rake are connected to the handle with a screw or rivet, you will want to inspect this prior to using it.
Type: Various shapes and sizes for different tasks.
Purpose: To remove soil, grass and other materials.
Maintenance: Spray the shovel or spade with a garden hose after using it. If the head of the shovel or spade is connected to the handle with a rivet or screw, inspect this before using the tool.
Type: Manual, gas, electric
Purpose: Used to remove dead or undesired limbs, leaves and branches from bushes, trees, flowers and other plants around the yard for a more manicured look.
Maintenance: Remove dirt and debris from the blades when not in use and prior to storing to prevent rusting or damage. Blades must be sharpened periodically for desired results.
GRUBBING HOE -
Purpose: Acts as an aerator between dirt pathways and in between landscaped areas or vegetation.
Maintenance: Spray the blade of the grubbing hoe with a garden hose to remove dirt and debris. The blade must be periodically sharpened.
GRASS SHEARS -
Purpose: To trim hard to reach grass patches, dead leaves and small branches from bushes and flowers.
Maintenance: Blades need to be periodically sharpened.
Type: Manual, gas, electric
Purpose: Similar to an aerator, except that the rototiller is able to work through harder surfaces and in a larger patterned area. Rototillers are generally used in gardening areas and flower beds at the beginning of planting season.
Maintenance: Blades should be sprayed off with a gardening hose to remove excessive dirt and debris. Blades often need to be sharpened. Tune-ups must be performed on the motors to ensure they are operating properly.