Originally Posted by Starkipraggy
All Electric Pokemon can be used to generate electricity.
All Water Pokemon can combine their powers to become one giant propeller thing.
Certain Flying types will be airliners. Smaller ones are relegated to carrier pidgeon status.
All Fire types will be useful in winter.
All Poison types will be the chemist's/substance analyst's best friend.
Not much use for Steel and Rock types.
Ghost types are for dead people to return the world on unfinished business.
Dark types...Not much use there either.
Psychic-types...Too many uses. Teleport? Mind reading? Prophecies? Light-Screen security systems? So on and so forth.
Steel: For magnets.
Rock: Yeah, can't think of uses either. Except for decorations in gardens, parks, etc. But they have some strength as well.
Dark: To steal stuff or to protect stuff from being stolen.
Stuff you missed:
Fighting: Whatever that requires brute force.
Grass: Gardening, decoration of parks, etc.
Ground: Helping out the Grass-Types, + digging, excavating etc.
Dragon: Not much use other than to look cool and be strong.
Ice: For desert travel.
Water: Ice's use (to a smaller extent) + water supply.
Bug: Fun for collecting. :3
Normal: Jack of all trades.