When I come on shift, the entire ambulance gets cleaned. Seats, buttons, steering wheel, door handles, all patient care equipment, floors are swept then mopped with a water/bleach/some kind of cleaner mix.
Some people at my service don't seem to think that because the patient never really "touched" the stretcher (on bed sheets from the sheet lift, or our blue sheet) or if they are not on isolation percautions or leaking fluids that we don't need to clean everything... however, many of my patients ARE on isolation percautions or immunocompromised and I'd rather not play russian roulette with my patient's (or mine either!) health and wellbeing, so I/my partner wipe down all used patient care equipment (stethescope, BP cuff, change the pillow case, pulse ox, monitor leads, stretcher including the stretcher handles and up and down buttons, etc).
We use whatever my company provides us with. Usually sani wipes but lately we've been getting some kind of thick foamy wipes with bleach that I like a lot better than the cancer wipes.