I've never really bought special furniture to account for Alfie. He lives in the living room/dining room so I have sofas, TV, dining table, chairs etc. I throw an old blanket over the sofa when he's out because there are two shelves above it that he hangs out of and drops things off. So the blanket protects the sofa from any shredding cardboard/toys or a stray poop.
He likes to try and chew on the cat tree because it has some wicker baskets on it (bad choice, in hindsight) so I pop a few cushions over the bits he's most likely to land on to try and deter him. When he decies to hang upsides off the side of a cushion to chew the cat tree, I ask him to step up on a perch and remove him (presenting my arm at that stage is likely to earn me a chomp... and he is more reliable with stepping up on a perch than me (even though I'm attached to the perch... go figure...!)
He has started top land on the TV lately, which I don't encourage, so I get him to step up straight away and remove him somewhere safer. The TV will eventually be wall mounted anyway as I'm planning to redecorate and reorganise the space sometime soon.