I use a broom with plastic bristles. Haha it is kinda weird but works good and I don't have to bend at all.
I agree with the others but Chlorox also makes a wonderful foaming scrub free spray. It works so well!
I put a sponge on the bottom and use my feet lol
I use a long handle brush that i found in the automobile aisle, life saver.
There is a tub cleaner brush. I think Walmart has it