We had none, relatively new build house so I added it all. We converted the double garage into a playroom for the kids and I ran 4m of Ikea Pax wardrobes down one wall.
1 double contains the children's coats, hats, shoes, school bags and a load of toys. Another does the same for mine and DH's coats, bags, shoes, the other double houses the TV, wii, games, board games, lego etc. One single contains the hoover and dusting things and another single is for the children's toys.
If a toy doesn't fit in that wardrobe space something has to be passed on.
In the children's bedrooms they also have Ikea Pax wardrobes (I think we have 7 doubles and 9 singles in the house) I only have a hanging rail for uniform, everything else is in a plastic tub, so like a drawer inside the wardrobe. Each single wardrobe can house 8 tubs.
I have got brutal over the last few years, mainly because of how much the removal men charged me to move house considering how much stuff we had
My hall is also long and narrow so no storage, not even an under stair cupboard as it is the downstairs toilet.
Linen wise, we don't have loads, just one spare set per bed. I tend to strip a bed, put it all in the wash in one go (mine fills the washing machine, the children's go in together, then it gets dried and goes straight back on the bed.
Photo albums are in the loft, everything taken since 2003 when Ds1 was born is digital so we have it on Picassa on the lounge TV, by that I mean my TV screen is a giant computer screen
I am typing on a wireless keyboard, all our DVD's have been put onto the computer so no boxes and boxes of them have to be stored. Dh is in IT can you tell? 
I think you just have to get honest and brutal. I listened to a local charity talking about needing clothes and toys for children so I went through the children's stuff before Christmas to make room for the new stuff and donated to the charity.