What substrate is efficient in cleaning and time?

[eyespy]

I like the ground coconut husk substrates such as Bed a Beast or Eco Earth. It's light and fluffy enough to shop-vac out of an enclosure so even a total substrate change takes like 10 minutes.

I like aspen for my colubrids who don't need much humidity but prefer the coconut stuff for anything higher than 55% humidity as aspen tends to mold.