Kim,
I couldnt imagine what you are going through...My mom is just the opposite, besides things like my dads cloths, everything is still the same at her house and thats how she wants it..
I know everyone handles grief in their own way, as for me I very seldom will go in my moms house, its really hard being there without my dad, like Beckys grandma I expect my dad to be there and I cant seem to get pass that..
It sounds like you find comfort being at your moms house, so maybe you should just bring memories of your mom to your house..I have a few special things of my dads at my house, when I look at them and hold them it makes me smile and remember the days when he wasnt suffering..
I know you know your mom will never be gone, she will stay in your heart forever..Also you are approaching her anniversary and that alone can put you in an emotional roller coaster..I hope you can find some peace through all this, we're here if you need us.....