How do you clean bottom pane on BB tanks.

[OCDP]

As the title says, how do you guys, especially those with deeper tanks, clean the film algae (or in my case the HA) on the bottom pane of the tank??

Seems difficult and awkward to get at I am going to invest in some snails and a Sea Hare to help prune off the excess algae, but does anyone have any good ideas on scrubbing the bottom pane, without getting your armpits soaked and breaking your back bending in all sorts of directions ? Or maybe it's just me.. but it seems to be quite the chore.