Hi Bonlou. Memory loss is really tough. We simply cant remember doing things. In a lesser form we all do it from time to time. So can empathise to a point. But, if we really cant remember what we did, then how can we remember something that is not logged/saved to memory? Thats hard, and extremely distressing for people. If we are cognitively impaired. The same applies. How do we know?
So your husband wont always see the problem. Or he may be aware of a problem but that worries him. Its worrying to even think we may be struggling. My mum knew she lost words. She said her brain was getting in a muddle. It was distressing. Some people try to cope by collecting things. Incase they forget where they put it. Or incase they think they may not have something.
Some people find the following helpful but strategies are never exhaustive. There are loads to try:
Help to organise what he has. Categories items in boxes, or shelves .
Colour code items)boxes. E.g. outdoor activity stuff in green box. Or place a picture on the side e.g walking gear photos.
Organise his drawers ...socks in top drawer, jumpers in bottom drawer. Place a picture on the drawer for him.
Sift through his bought items and place repeated items together, so he can see he has two of them.
Rather than list and organise things for your husband, say you feel you both need help organising stuff. So strategies are for you also.
Buying things can be a comfort thing so:
Can he challenge his needs into activities and pastimes? Find new hobbies, for home and in the local area. Help him challenge his energy and his stress.
Some areas have animals/dogs that can come round to calm people. Do any of your friends have a dog that needs an extra walk, or time for company?
His mind will be trying hard to make sense of things. He will cling on to anything familiar. Hence the obsessiveness. He will panic when events font make sense.
Give him ideas for daily gentle routines. Not obsessively stuck to as they can then become an equal bind, but just activities he may do in the morning. Or rest times in the afternoon.
Meditation classes are good for letting our minds rest. Nothing heavy. Just relaxation.
If he has collected double of things. It not being awful to quietly put the 'extra' away. Or donate it to charity if you can. Or put them together, to show hes doubled up and ask if he can donate the surplus.
Find ways to laugh about his doubling up. Show him you do it sometimes as well. I bought the same children's dvd months apart. Id forgotten id already bought one at a charity shop! Its normal.
Depending on what cognitively he struggles with the most, have a look on learning resources sites, for children with learning needs. The strategies are appropriate for adults as well. Eg having schedules, diaries, timers. Breaking tasks into tiny steps , rather than four at one time.
Tidy away one item, not a whole room. A whole room is overwhelming.
I hope something there gives you a starting point. But the memory clinic do need to tell you specifically what his difficulties are. Cognitive impairments are huge. So it would help you more for them to give you specific areas of need.
Good luck. People on this forum have loads of ideas. Some work some dont.hence why we need loads to find what works.