MI Yorkie,
Being creative, can save you a lot of money. Those Stairs I have
weren't cheep, and I imagine what a wooden set cost $$$ !
Both mine like to look out the upstairs window, and run that
mean ol Postman, and noisy Garbage Truck off regularly!
A slimple...
Ottoman to the Chair, then
the Chair to the Night Table (covered now with a thick towel)
then, from the Table to the Window Sill, gives them a good view.
(that didn't cost a thing !)
also...
I use a simple Cardboard Box, to get My Female Becca,
easily up on the Couch. When company comes over,
I just push it under the Couch, and nobody knows it's
even there.
The thought being....
Look around, you'd be surprised just what you already have,
which will work very well, and you don't have to spend
a lot of money.