homax wall texture spray can won't work second time
I've found that these are, generally speaking, one use products.

You can improve your odds by turning them in a way that blows propellant (usually down, but some products are tricky that way) and clears the airway, but even this is hit and miss. (Among other things, it gives you less propellant for the next time, so you'll end up with goo in the can that you can't shoot.)

So buy small cans if you have a small job.