Always have napkins at food events.  Always.

Always carry tissues around.  Always.

Talking to friends is good.  Talking to friends is great.  Talking to friends while both are in bathroom stalls separated by a stranger is awkward.  Do you really want to have a conversation while you're both doing your "business"?  Think about it.

Sometimes, laziness just doesn't really pay.  Just a few extra steps will save you the consequences of later.

For example, when spotting a mosquito on the ceiling while you're sitting on a bunk bed does not mean you should grab the nearest pillow to whack the mosquito.

Please remember to shower frequently.  Otherwise, you may have a nice touch of vomit added to your overall stench as nearby people barf from your lack of hygiene.