Short films like short stories are something that is very precise and interesting to watch. So, when conceiving ideas about short films, you have to keep in mind that your short film idea should be precise. Conceive ideas that are symbolic, deals with one or two themes, less number of characters, contain less scenes and sequences. Since, the length of the film is short, too many sequences can add chaos to the film.
If you follow the tips on conceiving ideas, you’ll see your budget is automatically cut. Less scenes/sequences and characters means the budget is cut without compromising the quality of the film.