I have the opposite problem. I bought a de-humidifier for it. It cost money, it benefits the entire house.
Nusa, gave you what be my first suggest. humidifier, or tray of water if heater nearby.
james_s would be the next -wear cotton. If you're doing the COVID stay-at-home thing, then make sure your bathrobe and pajamas are all cotton. none of this mixed fibers BS 
cdev has a good suggestion an air ionzier. It is a negative ion generator. Not the other anti-static type they create that toxic type of oxygen..Not hard to build one either.
However, do keep keep near your work area. They also pull out even tiny dust and it is a pain to clean that type. If DIYing, include a positive, or is it a grounding collector next to, or a part of it.( Not sure how to build that part). IT pulls in most the the dust laden particles
-Several have suggested bare feet, another is is just a piece of metal, or aluminum plate on the floor where you place your feet. DO NOT ground that to building electrical earth, thoug. A "feel good safer" option, is a small cotton throw rug under your feet.
james_s & CDS_Torsten Also have pointed out the chair, most modern office chairs use synthetic materials, quick solution is cover the seat and back with cotten cloth. I have some all clothe restaurant napkin over the seat and I seem to use the back for hanging a cotton shirt and my hoodie.
And geggi1 is correct, today all carpets are or at least have synthetic materials
May process would be in sequence.
1.) All cotton chair, cotton clothes, cotton rug,
2.) humidifier/evaporator tray of water,
3.)rug or metal plate/rubber shoes,
4.) negative ion-generator.
The ion generator may be a "go ahead and do anyway", keeps the air clean and nice. just put in middle or room or near the opposite room
Hope all this helps, I cannot think of anything beyond what has already been suggested
Let us know how you solved it!
Negative ions are not the kind that reduces ESD (neutralizes charges). I think what the ESD reduction products generate are both kinds at the same time.. (racemic) non-polar discharges.
Look around for ESD reduction products that are patented and look up the patents. . The kinds of ionizers that are used in electronics manufacturing and cost an arm and a leg are what you should try building for your own use.. (I'm not suggesting you violate anybody's IP. )
. What I am thinking is that no kind of ionizer seems like it would cost that much to make. ...yourself.
I had a bad experience decades ago that messed up my health badly and I think a
negative ionizer made it worse.
This situation benefited greatly from work that was done gratis by two labs and a number of very nice people who tried to help us sort it out. It would not have been horrid as it was were it not for very irresponsible real estate rental managers who viewed tenants as having stayed too long if they paid rent on time and simply lived responsibly in apartments. What they wanted is constant churn, so the resents kept rising along with the going rate. All of the tenants in that building were. All had decent jobs, were quiet, didnt damage things.
They wanted churn.
Rents at the time was rising into the stratosphere in one of the most outrageous housing situations in the world. 20% a year was not unusual in apartments that were not under rent stabilization laws. . I lived in that apartment for basically a decade, always paid rent on time.
The problem was an infestation with toxic mold in the building. This was not only irritating to your eyes and nose , it was literally toxic.
As mentioned negative charges pull tiny dust particles out of the air and they are attracted to the walls and wherever the ionizer is located (nearby walls) especially to anything thats grounded, like wires and the inside of electronics. Well in the apartment I used to live in's attic there was a lot of toxic black mold. It emits toxic satratoxin h,
around the 60th most toxic thing known. Anyway, the ionizer makes the tiny particles of this toxin (and it is a real toxin, produced by a mold to kill off all other living things, in proportion to the humidity level. Its not imaginary. It can kill. Its officially a bioweapon.)
The mold produces this toxin as part of a polysaccharide matrix. a greasy sugar like crystalline coating on the outside of its spores. Most of the toxin ends up in microscopic particles in the air. The smaller the particles, the more toxic they are to you. And the more influenced they are by negative ions. (they are positively charged, especially if you are near the ocean.
They are powerfully attracted to hair. cables of all kinds, electronics, and generally anything that they encounter while floating around in the air.
It turned out they were present in large quantities on my large collection of cables of all kinds. I attempted to clean them off using a dilute ammonia solution and damp rages and thick rubber gloves. But after answering a phone call on my cell phone I accidentally put one of the rubber gloves I was wearing (the kinds that lab workers wear, not the thin nitrile gloves. inside out getting that stuff on my hand. In around three or four minutes the hand just started to hurt. A lot. I took it off and washed my hand and the glove off with soap and water. Within the next coupe of minutes my hand turned bright scarlet red and started to feel swollen.
I'll never make that mistake again. Anyway, this is only the one electronics related episode of many bizarre things that happened then. Just a few days after this happened, we decided to move out of this apartment. We were told by the two labs that were helping us that we had to move for good because they would never be able to clean up up adequately without tearing the building down to studs which we knew they would NEVER do. To them
we were the problem for complaining. We moved into a tiny, unbelievably expensive studio and then knowing we could never afford an adequate place to live and tired of the housing wars, out of the area.
I would advise not humidifying because of the aforementioned experience. Humidity=mold which is potentially very unhealthy. It might be one of the least healthy things you encounter in life.