Hellen from the TV show "Neat" recommends storing your sheets in sets - as in when they are all folded, fold them into one of the sheets so they sit together on the shelf as a set. This is assuming you have "sets" and not single sheets I guess.

It took me two goes to get where I am now with my sheets and I reckon I need to attack them again.

Really, how many sheets sets etc do we need? I know I still have too many despite by best efforts. At least I got rid of a lot of my "just in case" items.