I'm like you.Worry worry worry.It use to make Mike crazy the way I worry.But now recently I found Mike is picking up my worry habbits.We get so involved with our cats.I think you may want to put hooks on the right side of each window for the strings where the blinds are, so when the blinds are up the string is further away from the window so they don't hang themselves by accident.I did that and it made me sleep better.And if your worried about sharp furniture or objects...you might have to find another place for them until you can figure something out.All cats love the windows so you may have to move things and Jan had a great idea for steps.Yikess!!!! All this work .LOL