Submitted by: Elle (Ectoplazzum)
The fact that the activity picks up every fall may be due to a few factors.  Perhaps the people whose spirits remain in the home passed at that time of year.  Perhaps they spent the summer working outdoors in the fields and weren't in the house very much until the fall when the harvest was over, and when fall comes, they then resume their regular indoor activities.  Maybe Marie herself does certain activities in the fall in the house that the spirits find appealing, and this goads them into action.  Maybe it reminds them of things they liked to do when they were alive and they're just trying to be part of the action again in any way they can.  Halloween is said to be the night of the year when the veil between the world is thinnest, so it could also be that the activity picks up in the fall because the veil is working toward getting thinner, making it easier for the spirits to interact than at other times of the year.  Most paranormal events take place at night, in the absence of natural light, so perhaps the fact that the days are so much shorter and it gets dark so much earlier in the fall has something to do with it.  On December 21, just a couple of days before Christmas, it's the shortest day of the year.  After that, the days start to get longer again, so maybe that's why the activity ceases a little while after Christmas. 
Take charge, Marie, and take your home back.  You need to tell the spirits in no uncertain terms that YOU are the one with the pulse, YOU are the one who belongs in this world, and that they are no longer a part of this world and need to move on.  Let them know that you will no longer tolerate their antics, and that you will do whatever is necessary, including calling in a clergyman, to send them on their way.  It could be that they don't know they're dead.  This happens a lot more often than you might think, and once you let the ghosts know that they are no longer living and need to move on, they do.  Be firm, but don't be angry.  You want to be in charge, but remember, anger is a negative emotion.  If there are entities in your home already, they can bring in other, more difficult to deal with, possibly non-human entities, and these entities are drawn like moths to a flame to negative emotions.  So keep your emotions on the positive side.  Don't be afraid, either.  These entities have been in your home for years and have not harmed you, so there's no need to be afraid of them.  Fear is also a negative emotion, and one off which negative entities feed, so you don't ever want to show fear lest it attracts other, not-so-nice entities.
Smudging with sage works, but you've got to be sure to get EVERYWHERE with the smoke, otherwise you might not get rid of your unwanted visitors.  You've got to get in every corner, every closet, do every window, every door.  It's not an easy task, and chances are the reason it did not work when you last tried it was because there were places you missed.  The best thing to do is to use a large, wide feather to direct the smoke into the corners and places that are hard to reach, because it's quite possible for a ghost to simply find a place where the smoke didn't get to in order to hole up for a while until it's time for another appearance.  There are many sites available on the Internet that give explicit instructions for smudging, so if you  want to try that again, research a couple of them to see what techniques have been most successful and then try those.
Since you have already had an unsuccessful attempt with sage, my best advice would be to use prayer along with holy water.  Find some type of natural thing (a brush-like flower or plant works well, look for something like a corn tassel) to dip into the holy water to sprinkle it.  Put the holy water in a bowl and dip the plant into it,  and as you walk from room to room, use the plant to flick the holy water around the room.  As you do this, recite the Lord's Prayer and/or the 23rd Psalm.  Tell the entities that they no longer belong in this world and that, in the name of Jesus Christ, they need to move on to the next world.  If you feel uncomfortable doing this yourself, contact a local clergyman to do it for you.  Believe me, they will NOT think you are crazy.  I have done this myself in the past and found that just about every clergyman I talked to about the situation was MORE than willing to help and offered to come out and do a complete house blessing for me, and not one of them even attempted to make me feel like I was imagining things. 
In the event a house blessing by a clergyman doesn't do the trick, I would advocate calling in a local paranormal research group to investigate the house to determine just what type(s) of spirits are responsible.  Residual hauntings do not respond to blessings or anything else, because there is no spirit involved TO respond.  Residual hauntings are basically tape recordings of events that happened, so expecting a residual haunting to respond to a house blessing would be like expecting someone on television to answer you when you say something to them.  From the events you described,  however, it sounds more like you do have an intelligent haunting going on, at least on the part of SOME of the entities involved, like the one that grabs your foot and the one who shakes the bed.  The girl sitting on the non-existent chair, the snorting, snotting man, and the slamming non-existent door could be residual OR intelligent, depending on whether or not you are able to elicit some type of response from an attempted contact with them. 
Again, I would try the clergyman house blessing.  In the event you still have activity afterward, I would contact a local paranormal research group to try to ascertain what type of entity(ies) you are dealing with, and perhaps they will be able to help you banish them if it comes to that.  Good luck!

Submitted by: No name given
My advice is simple. Get night lights, 4 watts is fine and put them in every dark room in your house, including your bedrooms. Never shut them off. Then take a flash light and shine it, during the day, into every shadowed corner, under every bed and in every closet. What you have aren't ghosts but something else that come to bug you. Don't ask me why this works but it does. I have even had to make a game of it with my daughter, when she was younger, because I didn't want her to be afraid of what is the spectral equivalent of ants at a picnic. These are shadowy pests, nothing more, and I have dealt with them my whole life until I figured out how to get rid of them. They love to make mischief but are otherwise harmless. 

Submitted by: Catherine // Ectomist