If you can, get a driving licence that lets you drive smaller minibuses. Good for tourist pick ups.
A first aid certificate as well as dangerous good certificate. Don't leave home without them.
Night VFR rating. Easier to keep current than an Instrument rating.
Some maintenance skills are bloody useful.
If you can get any time flying a C206 would be very useful.
Leave the attitude at home, be friendly and open.
Good luck