The following magick is a way to move somebody out of your life. It is similar to the freezer spell that @Whitehowlite mentioned, but I prefer this variation as rather than remaining within your home, the target is removed from your life completely. The magick is not intended to cause harm, and will simply make the target lose interest in you.
Go to a place away from your home, ideally one that you do not travel to often. Take an object from this place such as a stone, a piece of bark, or a twig. You will need to return this item to this place at a later date, so ensure that you remember where you have chosen.
Return to your home, and begin to associate your target with the object. You do not need to print out a photo of them, but you may find it helpful to write their name on a piece of paper and attach it to the item, or to write their name on the item directly. If you have a strand of hair, a nail clipping, or anything else associated with the target, it may also be used to build the association.
Once you have labeled the object, you must consider it to be the target. It is no longer a pebble or leaf, but a piece of the other person now within your presence. Treat it as such. Speak to the item, out loud if you can. Remember how you met them and recall any memories you have with them, but try to avoid the events that have led you to perform this magick.
You may notice a change in the way the object feels after performing this exercise. The change may come the day you collect the object, it may occur after three days, or you may not notice anything at all. Once the change has been felt you may move on to the next step. If you notice nothing after a week, your magickal senses are likely still developing, and you can trust that the connection has been formed through this work.
Now, return to the place where you found the object that is now the person from whom you desire to be free. At this point, there is no need to consider the magick, as the essential connections have already been made. You are simply returning an object that you found to its rightful place. Release it with joy, and then get on with your life.
The magick is complete, and to spend time worrying about whether it is working or when/how it is to manifest would be a poor use of your valuable time and energy. You do not need to forget about it completely, but should it come to mind, recall the feeling of joy that you felt when you returned the object to where it belongs, and the feeling of being free from an unwanted presence in your life.
Let me know if you have any questions, and I wish you the best 
(This magick is based on chapter 28, “To Move Somebody Out of Your Life,” of Magickal Attack by Gordon Winterfield)