Consecrating is different question, but about cleaning:
Use common sense.
Altar shouldn't ever have spider webs around it unless it's Halloween dekor and it shouldn't be dusty as is proper for a any sacred space.
Tools the same, with some being cleaned more often, depending on use. For example things that are used for drawing blood should be cleaned before every use.
If after ritual (or any work) there is any mess, clean it up right away. Sacred space should be clean, as if it were space always ready to welcome visitors.
1. How often do you clean your supplies?
Whenever it is needed.
2. When you do, do you do it at a specific hour?
Whenever I have time, I cannot do things at the same time every day.
3. Do you use regular cleaning supplies, holy water, or consecrated cleaning supplies?
Unless it's needed, I don't have any special cleaning supplies.