Trusting myself is an issue for me, too. Now that i have a dog and have to think of providing for her and any vet bills that may pop up, i've gotten pet insurance because i can't trust myself not to blow thru my savings when i'm manic. It's a preventive measure.

I also throw out medication i'm not using rather then stock-piling it to prevent ODs.

It's all part of learning to work WITH yourself.