Hi M., I feel your pain. What has really helped in my house is having a "chore" sheet for each child. The chores are divided up by the days of the week. Each child knows exactly what he/she is to do on each day of the week. This has really helped me tremendously with the everyday cleaning of the house. My 3 oldest (9, 7, almost 5 yo) have these responsibilities, the younger 2 yo helps where he can. I also pay my kids a "commsission" based on the work that they do. It is not an allowance. We are teaching our children that when you work you get paid, and if you do not work, you do not get paid. (based on the Bible) So, when they do their chores, they get their commission, and if they do not, then they do not get their commission. It works great. Although, I do have to tell them to go do their chores, but they do them. My husband does help in the kitchen and other household things. However, sometimes I have to ask him to help. I have learned through the years, that he cannot "read my mind" therefore, if I just ask, he is willing to help.
With all the papers and stuff in your kids rooms...I keep school papers with me and throw out the ones that I do not want to keep. The special art pictures, I hang in their room or on their door and switch out with new ones that come in. I have a plastic box for each child with their name on it, that I keep papers in that I want to keep for memories. I do go through this box about once a yr and weed out the ones that I have changed my mind about. If my kids ask why I throw something away, I simply tell them, that Mommy cannot keep everything because then our house would be too messy to live in. I also tell them that this way we can have room for another special picture.
Also, before birthdays and Christmas, we go through each child's room and help them get rid of toys that they do not play with anymore. We let them help us and the toys that they choose to get rid of "will go to another little girl/boy to play with." Yes, we do give strong suggestions on what to get rid of and this really helps weed out toys that they do not play with. Sometimes, I give a compromise, such as, "You can keep this, but if you do not play with it by such and such date, then next time we will give it to someone else." This works well. If the room is getting too cluttered, then it is time for another clean out with Mom.
Okay, I know I have been wordy, but I hope this will help you. It really has done wonders for our family and has reduced the stress load on me tremendously. If you would like a copy of our chore sheet, please just email me and I will be happy to pass it on, ____@____.com
On a personal note, what has also helped me tremondously is taking a "stress reducer/anxiety pill". I cannot believe how much I have relaxed about house stuff and other little things that use to drive me crazy. It has really helped me a lot. Please do not be offended by me saying this...I am not saying that you have to have one... just something to think about. It helped my stress level soooooo much.