Go to the Dollar General and Family Dollar stores, and pick up those cheap *but good* pots/containers and window boxes...
*some don't have pre~drilled holes in them and
you have to get out the drill and drill them in
yourself, but still, not a bad price*
I have tons of them..
And fill them in those...
*(P/S I am in the same boat, maybe notttttt quite 70, but haven't done mine yet..
I found a load of geraniums thrown out at my
local cemetary and put them all in my basement.
Just checked them last week and they're still
there and green and will be good to go come spring