Use Vaseline and Don't Touch Your Glans or Frenulum

Use any basic technique not involving toys to get your self hard. Lube up glans and shaft with liquid Vaseline. I have tested several water-based lubes that are not as good. There may be other oil-based lubes which are as good.

I am uncut, but because the Vaseline is a lube, this should also work on uncut dicks.

Stroke as usual, but make sure you don't touch your glans or frenulum. For some reason that heightens the sensation and makes it last longer. This one is a good one to edge with.

An improvement would be to put a cockring round your balls. That adds a feeling of tension and makes them easy to play with.