I am curious about which skills suite well with each other to be combined. If you know anything, please discuss them here so we can learn from it.
A few examples that probably already are coffered somewhere are:
Cook:
Cooking, gardening, fishing, inventing. No explanation needed. Exept for that inventing will inventually let you build the harvester, which will let you collect the fruits faster.
Nectar connoisseur:
Nectar making, gardening, fishing, handyness, inventing. Fishes used to increase the quality of the vegetables, vegetables used for the nectar of course and the handyness is used for the nectar machine improveness. Inventing is used for the same reason as for coocking.
Gem collector
Athletic, martial art, collecting. Use martial art to unlock the ability of carving gems out of spacerocks, athetic is for fullfilling the body builder challenge so you never get tired of carving gems (unless the energy bar drops to zero) and collecting increases itself after you pickup the gems. After finding 10 different types of gems you unlocked the heartshape cut form, and after finding even more gems you will unlock other gem cut types as well.