Hi Jan
I use an old version of Family Tree Maker and find it perfectly adequate for creating family trees, which is all I use it for.
I keep my original research in individual A4 ring-binders: 1 each for parish records, census, burial records, newpaper extracts, etc. I also use commercially available storage binders for original certificates. For miscellaneous items such as letters, etc., I have A4 envelope folders for each family name. All of this, along with the boxes and albums of family photos, takes up a lot of room on the bookshelves!
I use a tailor-made database in MS Access to store all the data so that I can easily search on a selection of parameters. As I enter the data, I transfer the original transcripts to a separate binder, but I never destroy the original transcripts!
I then write up everything I find in narrative form in MS Word, with a separate file for each surname and sections for each individual, detailing all I know about them from birth to death.
Old family photos are scanned and stored on the computer.
Of course, everything on the computer has to be backed up regularly and, periodically, printed out to ensure that it can always be accessed, even if you have a total computer failure!
Regards, Bill