In my old-people stage, some Old People things that are necessary:
* Itching creme, for gardening, bites mites whatever they are. Hydrocortisone 1%. Crème, not gel.
* Anti-bite stuff.
* For dogs: (& horses) "non-toxic & safe for all animals - even CATS!1" ------- it's SULFER. Cures mange, did you know there are two kinds, and if it's not the kind that gives humans SCABIES (within days/weeks) it's the kind that can be fixed with THIS!1 You don't have to pay scavenger veterinarians who will charge you $200 for "tests". There are TWO kinds of mange and if you ain't got scabies, you can fix it with this.
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I don't know what I'd do without it! 
that you included our furry friends...
One neat cream I discovered is Sulfodene. One of my girls has chronic staph/yeast sores and bumps on her undercarriage.
For the staph, I use a weak water and Betadine solution alternately with some Excel antiseptic spray.
For the yeast on her vulval area, the vet gave us some expensive stuff in this itty bitty tube with a big price tag. Worked, sort of. But it doesn't last long, obviously. So I got a tube of the Sulfodene, which takes care of a number of different sources of doggy misery. And it's not expensive!
Anyway, necessary stuff for old people...
easier-open packaging. I'm sick and tired of fighting with jars and bottles and packages.
For itchies, I also use Vicks Vaporub. Or a freshly cut onion. Except for er....sensitive places. Then hydrocortisone cream is best.
Packages with print that doesn't require a microscope to read.
Maxine and I have a lot in common...
Tying little-boy double knots in my shoelaces.
And allergy pills 
I never used to be allergic to pollen.
