I flew a J-3 Piper Cub, which has a crank handle (actually the window
handle from a Model A Ford, I believe) lower left where it can be
reached from front or rear seat. While it's possible to fly without
trimming, it's annoying to continually hold stick pressure, and I
think it's a bit dangerous on landing and even on takeoff. At those
times you want a 'nice' feel for the stick, which is spoiled if you
are holding it fore or aft in order to get neutral (if you follow!).

Basically, I check the position of the stabiliator (pitch trim on the
Cub is done by moving the front of the horizontal stabilizer up and
down--with an automobile jack worm!) while doing my preflight
walkaround. My pre-takeoff checklist is CIGARS, with the A standing
for Attitude, and at that letter I eyeball the trim indicator. I have
on rare occasions adjusted the trim in the course of taking off, if I
find myself holding forward stick in order to stay about say 50 mph on
the airspeed indicator.

I trim for level flight after I've finished the climb. Most of the
time that's full forward, and sometimes full forward isn't enough and
I hold a bit of forward stick.

And I trim for glide when I cut my power on the downleg opposite the
numbers. The object is to glide at 60 mph on the airspeed indicator;
that's neutral trim with the power off.

I did some training at Chandler AZ in a Super Cub, and the instructor
insisted that I stop trimming on landing. I didn't like it much, and
as soon as I was alone I reverted to going to neutral trim on every
downwind. (I suppose he was having me adjust the power on each leg of
the pattern, so I was adjusting trim on downwind, base, and final.)

No rudder or aileron trim on the Cub.