Despite the fact I get very little accomplished in my day-to-day life (but oh what grand dreams I have!) I tend to let my personal hygiene slide too easily. Going three days without a shower, or brushing teeth, not shaving for weeks despite having really shit looking facial hair, being slack with appearance in general. I have an inkling that this is a common trait among aspies.
If I'm out and about I at least try to have a shower beforehand, but sometimes the shower-in-a-can will suffice (deodorant).
I think I'm pretty conscious of my smell, but I'm also aware that I might be desensitized to my own pong. People, having better social abilities (tact in particular), probably won't call you on a mild stench. Sometimes I'm worried about whether I appear unwashed and this just piles up on my social anxiety and thus retardation. It doesn't help having oily skin and hair either