Irish blessing and which old cards to keep

May green be the grass you walk on,
May blue be the skies above you,
May pure be the joys that surround you,
May true be the hearts that love you.
   Old Irish Blessing
This is from a birthday card sent to me in 1995 by my uncle Leroy. I am going through old cards and letters and weeding them. Yes, 1995. I keep too many family letters and cards! Do any of you, my blog buddies, do that too? It feels good to weed and lighten papers and possessions.
I treasure and will keep forever the last letters my mom wrote to me, in 1971, the year she went to heaven. Her letters overflowed with wisdom and love.
Two of my blogging friends have blogs where they show old postcards and cards, which are so pretty and full of charm. This makes it hard to decide what to discard and what to keep "forever." I am in the middle on this, I keep a fair amount and discard plenty.
Where are you on this "keep or toss" spectrum?