How can I stop my feminine cat from urinating on things?

I have a female nine-year-old orange tabby who have a terrible habit of urinating on certain items: hip bath towels, bath rugs, dirty clothes that are going to be put in the laundry, jackets that you give notice lying on the floor. What can I do to get her to stop doing this? She has been doing this since I get her from the local animal shelter six years ago. There are no medical problems going on with her to be causing this. Any good proposal would be helpful.
Answers:    my cat does exactly the same item she wont go outside the vet said this is because shes old most frail cats do it your best off just buying her a cat litter box
Get rid of it.
How come cats purrRRRRR?   Feral Cat beside immense scabby mass over lost eye?   She is pregnant and have continous sex? Isn't that unexpected.?   My cat have not appetite and appears to hold respitory problem. She is 9 years older?