very effective

but also very miserable exercise

squats

I can't do squats every day...

Ab wheel

i tink eaten vegetables git u abs

shouldnt do abs everyday either...

I do them every day I lift, which would be mon/wed/fri

o yes, love these!

Yes you could.

My ab/core workout consists mainly of:

Bodyweight:
Gymnastic rings - basically anything works
Toes to bar
L-sit

Weighted
Russian Superman
''Lu-bends''
Barbellsitups
Planks

If you saw how disproportionate my body was you wouldn't say that. Being a hockey player my whole life, but never much of a gym goer; I can squat up around the 340 mark (yes, I go all the way down until my thighs are parallel with the ground), and bench 160 on a good day.