Well, I'm a newbie here, so I don't know if it's appropriate for me to answer... but I'm not shy, so here goes my two cents!
I have four cats, and each and every one of my cats has/does do the same things.
I don't allow my cats on the counters, tables, etc... technically that is. You just have to be consistent, and serious about it. I admit, my cats pretty much have free run of the house. They do go on the coffee table, or end tables, and although I sometimes tell them to get down, I'm not 'that' serious about it, so they pish posh me when I do it... they give me this look like "Yeah, right, who you kiddin'"? HOWEVER, I do NOT allow them on the counters ever, and this is something I have always been consistent with, and they don't even attempt it.
My Pi went through a teenage stage, he was HORRIBLE!!! We let him go through it, and the only thing that really helped was consistency, but more I just was extra careful to keep everything I didn't want him to get out of the way. He's about 2 now, and is still full of vim and vinegar, but isn't as stubborn as he was, which is 99% of it!
Climbing tree...Climbing me?! My cats STILL do it. They do it to me when I haven't been giving them enough attention... or shall I say, THEY think I haven't given them enough attention.
The key to anything with cats is consistency. They will learn, but at their own pace. As a matter of fact, just today a friend that was over asked why none of our cats scratch up the furniture. That's one thing we were VERY firm with, and even with four cats, I don't have so much as one loose thread on any piece of furniture, I'm happy to say!
Hope that helped some... maybe??Declawing = Cruelty