sometimes I have difficulty solving a problem (math, idea generation, etc.)
Certain activities (walking, tangrams, numchucks, soma cubes) reset my brain and make intellectual problems easier to solve
Wiki on soma cubes:
some soma cube patterns:
adjust table saw to cut off the curved edge part of the 2x4 (biggest part of wood between blade and fence)
cut 1 side off all 2x4s
cut the other curved edge of the 2x4 off (biggest side of 2x4 between blade and fence)
now you are left with square lengths of wood about 1.5"x1.5"