Beat the clock.

Two Minute Rule:  If you can do it in two minutes or less, do it now.

Not on the counter, into the dishwasher.
Don’t put it down, put it away.
Make the phone call.
Pay the bill.
Hang it up.
Recycle it.

Don’t think, ‘I’ll do it later’.  You won’t.
Avoid touching things multiple times.
Quit piling, stacking, ignoring.

Thirty seconds now eliminates clutter in the future.