indirect lighting, you just need a lamp and a lets call it ''reflector'' ( i dont know the correct english term) which can be anything like a sheet of white poster size paper. also experiment with different kinds of bulbs, for warm / cold lighting. or just cover the lamp you use with a piece of cloth to make the light less harsh. i use these things for portraits/ set up pics of certain things alot. cheap easy and with a bit of experimenting with the stuff you got at home it might lead to great results.
also try purposely harsh lighting and underexposing then and vice versa, at a certain degree the outcomes, especially shadows are quite interesting
but thats just what i do for shits'n'giggles i dont take the photographing too serious, just a hobby