I'm scanning old documents that likely will never be looked at again or once in the distant future. Cleaning out filing cabinets - old tax bills, closing statements from property my uncle owned and sold years ago, old school report cards, old wills of uncle & father that died years ago / estates are settled.
Likely just things our kids / grandkids / etc will look at to reminisce (sp?) and not much more.
Best way to scan? they are text docs so I am scanning at 200DPI - it's the text and overall appearance that's important. Not to zoom in and see the nuances of the font used, etc.
And then what format? PDF? JPG, something else? A couple things are 2 page docs, so as a PDF, it's nice that the 2 pages can be in a single file. There's no 2 page JPG, right? TIF would do that, right?
But who knows in 50+ years what formats will still be readable?
care to guess?