I have allowed them to find their own comfortable place.
DD1 used to like going to her bedroom and I put a rattan chair there with quilts and cushions for comfort plus a laptop lap desk. She liked to have her music on while doing homework so had her ipod on with earphones. Her papers were 'arranged' in piles around the room along with all her clothes.
DS started out 'doing homework' in his room but after a few weeks the notices from school started arriving ('Where is DS's homework? Is DS planning on doing homework this year?') so I moved him to the kitchen table much to his chagrin, and that is where he stayed. He got used to working while I cooked and cleared up and kept an eye on him.
DD2 (17) sits anywhere she feels like and uses her ipod to create her own little bubble. She does some studying on her bed with a plastic lap desk. She keeps papers in stacks on a bookshelf in her room. There are some books that she doesn't need in class every day so they are there too. She has a desk and the old rattan chair but DD4 has taken over the desktop with a massive lego creation at the moment. Calculator is with her at all times.
DD3 (14) uses a corner of the dining room table and sometimes sits on the couch or on her bed, with music streaming on the laptop. Her calculator is with her at all times as they use them in school.
DD4 (11) does her homework lying on the sitting room floor in front of the tv mostly
. DD4 is a girl who loves all things neat and orderly and organised (requested office supplies from Santa Claus one year) so I will be getting her a box for papers and she will take over the desk when she takes down the lego city.
They are all used to living in close quarters and silence while studying would be quite strange for them. The tv is frequently on, the kitchen is usually busy, someone is often chatting on the phone, someone might have a friend or two over -- the solution is ipods and my one rule is if I can hear the music it must be turned down until I can't.
All of them can print remotely using their laptops. I ditched the fancy printer a few months ago in favour of an inkjet with a mahoosive ink cartridge after one too many midnight runs for ink with the last one we had -- it ate ink and got nowhere near the number of pages it was supposed to.
They use calendars on their laptops for homework due dates and organising their studying, etc., and we have a family calendar in the kitchen for sport and club events.