Colds and banquets

1. The lady who sits next to me at work has been sick for two weeks. She was out part of last week and has been to the doctor at least twice this week. In my professional opinion, it sounds like a bad cold, but this lady doesn't cover her mouth when she coughs or sneezes. I can hear the difference, and I can tell you that the only time I've heard her cover her mouth when coughing was when she was actually on the phone with her doctor's office. So I know she knows she's supposed to, and she just doesn't care. What an asshole. I've been hoarding my sick days so I can take a few days off when we get a kid, and I haven't been out sick since July, so if this bitch gives me her gross cold because she doesn't know how to be a functioning member of a society, I'll cut her. I've been munching chewable Airborne like candy, even though they're made with horrific disgusting fake sweetener. I also will be taking fish oil before bed for the next few nights (secret: taking it before bed = no awful fish burps!). I am determined not to get my usual fall cold, even with gross neighbor lady's best efforts.

2. Tonight we're going to the county's annual foster parents recognition banquet thing. Even though we don't have a kid yet and will almost certainly only know each other and our certifying worker. My reasons for wanting to go, in order of importance:
     A. To introduce ourselves to the homefinder (the person in charge of actually putting a kid in our house) so she knows who the hell we are and will actually give us a kid.
     B. To eat a free dinner (the equivalent of wedding food, as the venue is a popular wedding reception place).
     C. To maybe meet some other foster parents in our age range to befriend.
I have no idea what the hell one wears to a banquet, as the last one I attended was when I got a scholarship in high school. Wearing what I have on from work feels too casual, but anything dressier feels like I'm trying too hard or something. Trying to impress strangers is hard, y'all.

What are your secret don't-get-sick preventative measures? I'll try anything, as long as it's cheap!