Dear L.,
Congratulations on your upcoming anniversary! you must be so exited about it. So while reading your request I sort of felt that it was I who wrote it. Keeping the romance alive in a relationship is the hardest thing, especially when $$ problems are present. You also mentioned that you have four kids, and that takes most of our energy as parents and we tend to forget about ourselves and our spouse. The good thing is that you love your man and that you want him to know that...and I bet that he loves you too.
So, this is what I have been doing with mine...(I have the exact same story as you) After considering leaving the man I adore, I decided that I was the one who was going to change my attitude towards myself and our relationship. I started by getting a haircut without expecting my husband to notice or even say something nice...but he did! I am taking time for myself and trying to get in shape after letting myself gain lots of pounds after my second daughter was born...Exercising has helped me relax, look and feel better, and most importantly my husband is noticing that and is happy about me doing it. Now I am always sure that I put on some make up and comb my hair (I got really nice and cheap make up at Big Lots!)<I threw away my old t-shirts and put on nice clothes so when my hubby gets home he finds a HOT MAMA :) I also love the way I feel since I started taking care of myself.
I hated (still hate) to clean and cook, but now I do it more often. I also decided that for our family's sake I should take control of my house cleanliness and family's good eating habits. So I try to accomplish at least one chore a day. I clean the bathrooms on Friday, Do laundry on Wednesday, vacuum on Tuesdays, etc. I also found really good, cheap, and nutritious recipes online (I just googled them) You mentioned having a 9, 7, and 5 year olds, girl they are old enough to help you with chores around home. I make my 3 year old do the dusting and window cleaning..she loves it! If you delegate chores you'll find it easier to keep a nice and clean home, and you won't be too burden with it. Your hubby can help too, off course. I promise that he will be more exited to come back to a clean home form work each day.
So I know this does not cover the romance part, but please believe me that it is a start. After doing this for two months, I feel that my husband is less stressed out and complains less about the house stuff. I am nagging less and try to let my husband know that I appreciate what he does. I send him e-cards every week, try Hallmark.com they have tons of free ecards you can send. My husband comes back home and thanks me for that, and even though I do not get an e-card back (he is not romantic) I love to hear that I made his day. So you can prepare him to have a special anniversary by changing the atmosphere at home, but most importantly by changing your attitude, try to always look nice, not only for him, but for yourself...it really makes a difference. Remind your hubby how hot you were...and still are after ten years.