Well, if the issue is that you have no work experience, then that's what you need.
Have you considered applying to temp positions? Part or full time. There are staffing companies that focus on specific industries, so you might not find an engineering job, but you could find a comp sci or IT support position. Just to get your foot on the door and get some work experience while also pulling a paycheck.
Many people I know have gotten onto the ladder this way, myself included.
Same. If it smells clean and looks clean, then it's clean enough for my needs. Any mustiness though, and in the wash it goes.
I've found that in the summer, I'm lucky if it still smells good in two days, but in the winter it can sometimes last 4-5 days.