Can TextExpander insert math symbols?
If you use math symbols a lot, and rely on the Edit->Special Character... palette, you can save time by setting up TextExpander for the commonly used symbols. So, for example:
llar to →
llla to λ
llGa to Γ
llth to ⊢
(ll stands for latex. Thanks to Alan Schmitt for this suggestion :
http://alan.petitepomme.net/).