My cats used to destroy venetian blinds getting up on the windowsill. They would bend them to push their way onto the sill so they could watch the world go by, and sometimes I would find tooth holes in the blinds. So having access to a windowsill is a must in my book.
My boy cat used to hide in the kitchen cabinets (he was such a fraidy cat). Cats are like dogs, they all have unique personalities and can usually be great company. Oh, and he used to unroll the toiletpaper while I was at work. He was also one of those that urinated on whatever he felt like if he was upset.