Here's a few bits I can't do this without...
Pink n Whites
WW yoghurts (the only ones I know of that are 1pp each and they're REALLY nice)
Some sort of plain crackers/rice cakes
Meringue nests (make a great pud with fruit and yoghurt: 1pp for 1, 3pp for 2)
Low PP ready meals (whether WW ones, shop's own "healthy" or even the value ones which are smaller portion but lower PP)
Chicken breast! And lots of it! Low in points, filling and versatile.
Laughing Cow Light/Extra Light triangles. 1pp for 2 of them, brilliant! (Dairylea light is the same I believe)
No added sugar squash to drink- unless you drink it by the vat-load it's free.