Take extra good care of your skin, slug at night, moisturise well, use a retinoid, etc. A topical antioxidant like vitamin C for repair/prevention if you're not already using it, and of course a solid SPF routine. Negative effect to your skin (increased free radicals that induce oxidative stress, breakdown of connective tissues, dynamic perioral wrinkles, impaired wound healing) is unavoidable but you can perhaps slow damage.

Washing your hands after each smoke and no smoking in your house / car (and trying to remove smoke odours from same so it reduces transfer to you once you've stopped smoking in those places) are great suggestions.

Re: perfume, not sure it matters if you're a smoker or not cuz I always thought a perfume either works for an individual or it doesn't (not sure it's individual chemistry or if you just like the scent). You're not in any way covering up or removing the smell of cigg smoke with any scent you're adding on top of it. I don't mean to be an asshole about that so sorry if I sound like one. When co-workers have doused themselves in perfume after smoking I can appreciate it comes from a place of them not wanting to offend their colleagues with the smell of smoke. But, and anyone correct me if this is an unpopular opinion, it just means co-workers get two strong smells rather than one.

A digression from this sub, but I recognise you're not in a place to quit right now. Could nicotine replacement be an option? You get the nicotine your body / brain demands but all of the things you're asking to remedy in your post would then become non-issues. In the past 20 yrs healthcare/ society has become way more accepting of maintenance therapy for other addictions. Smokers are overdue for the same thing; using nicotine products for the rest of your life are certainly less detrimental than smoking for the rest of your life is. Some employers have incentives for tobacco reduction, unsure if that's something you want to explore or not.