Depending on the method you choose to remove grass, it may or may not matter whether the grass is wet or dry when you perform the task. A dryer lawn will be easier to negotiate with a sod cutter, especially if you're not planning to reuse the turf. However, using a shovel by hand might be a little easier if the ground is slightly damp but not so much that it sticks to the tool.  

Removing leaves prevents mold growth and ensures grass gets sunlight and air circulation.

To remove old grass effectively, you typically need to dig to one to two inches. This depth typically allows you to reach the root system of the grass, ensuring thorough removal. However, if the grass is a particularly dense or deep-rooted variety (such as Bermuda grass), or if you're planning to replace it with a different landscaping feature, you may need to dig deeper to loosen the soil and remove any underlying roots.

The fastest way to rid your yard of pesky stickers or burs is to go mechanical on them with a lawn mower or garden rake. Use a lawnmower with a bagger attachment to avoid spreading the seeds around and causing a bigger issue. If you choose to rake the stickers off the plants, be sure to dispose of them properly. Avoid putting them in with the composting and check local guidelines for disposing of lawn waste.