Command strips/hooks are affordable & great for people who are in dorms or renting apartments & can't make holes in the walls. I use these to hang just about anything. They have different colors & sizes for different weight limits. They are easy to use & don't destroy walls. Very durable. Highly recommend!
These things work great! After having a picture frame fall off the wall with the little hooks, I decided to try these velcro ones instead. They're super easy to use and put up, and the picture frame is securely fastened to the wall. I'm pretty sure it's not going anywhere. And Command products are super nice because they don't scuff up the wall.
Really like this product. It really holds up my mirror well and you don't even notice them. What I like the most is that I don't have to drill a hole in the wall just in case I decide that I want to move the mirror off the wall and leave nothing on it.
It depends on what exactly you're planning to put up. I use these for pictures in lightweight frames. There are different sizes for different weights, so look around. I like them because they're easy to remove and re-position.