I sympathize with you for the loss of Dusty and the pain you still feel. I do the same thing, one day past, one week past -- I think that's normal. Sure it hurts, he was with you for a long time and loved you unconditionally. Cry and rage all you want. Some day you will remember sweet Dusty with a smile not a tear.
When we had to put Dede down, she left behind HER companion - Teddy - they've been together since she came in our house 7 years ago. I put the shirt I'd worn that day we put her down over the edge of Teddy's bed so he can smell her if he wants. I kept the mat we put on the back seat of the car downstairs (without washing it) so he can smell her. The kids and I all cut tufts of hair from her before she left so we'd remember her smell (and I close my eyes and inhale that scent of her aLOT) Those types of rituals comfort you in sad times.
Maybe when you're ready to give up sleeping with the sweater, you can get a nice big frame and have his picture, sweater, tag (and whatever else you have of his that would fit) mounted and hang it proudly in your home. We're going to do Dede's picture, her ID tag (and maybe collar), a tuft of her hair and a nice verse -- we'll frame that all and hang it up.
I know today is very hard for you and you are probably like so many of us in that you think to yourself one week ago today, we were ..... (whatever you were doing at that time) ... then you cry at the one week mark, then you feel sad the rest of the day. ((((((((((( Dustys Mom))))))))))) We've all been there. We know how painful it is and will continue to be. Keep coming here and talking about Dusty - we want to hear about him and his life - if he's kept alive in memories he'll always be a part of you.
Take care of yourself today,
Lori
(here is Dede with her pal Teddy, who is still mourning her and looking for her)