After having a grandchild with a compromised immune system because of chemo where a germ harmless to others could become a life & death matter to her, I'm absolutely obsessive about germs. Now that she's off treatment and doing well, I'm a little more relaxed about it - but not much. I use antibacterial soap - flush with my foot whenever possible (in public toilets) - if not possible, I use toilet paper to cover the handle. I wash my hands well with soap - never use the air blower since it just blows germs right back on you - use a paper towel to open the door - use hand sanitizing gel after shaking hands at church - wear gloves and a mask to clean the chicken coop...get a flu shot every year. If a public bathroom is really nasty, I'll leave and find another one. I keep sanitizer gel and wipes in my purse and clean off shopping cart handles. I'm obsessive - but it really doesn't stop me from doing what I want to do. We live out in the country and have chickens and other pets and a large garden. We travel and entertain a lot.
Oh - and I have "outdoor" shoes that stay by the back door - and "inside shoes" that I wear in the house. Before the grandkids come over, we wipe down door knobs, kitchen counters and toilet seats/handles with antibacterial wipes.
As far as antibacterial soap drying out hands - there is antibacterial lotion available now - great stuff! LOL!
For what it's worth, my husband and I have had fewer colds and viruses the last few years than ever before - and I believe all our extra sanitation measures are at least partly responsible for that.