When young I used my fingers, a pillow, a running a train then would lean on a handrail or guardrail, and enjoyed the vibrations. When older a massaging shower head. Glass dildo, plastic, rubber. candle.
When first time with woman, tongue, fingers....
Later various vibrators. battery or electric toothbrushes, shavers, lovely rabbit with two heads, one inside and one on clit.
When married, tongue stimulation, anal, vaginal, partners hand. When alone an ice cream wooden stick, lightly hitting on clit.
Now my maid tongue every morning.
In 50 years 20 methods, it means every 2 or 3 years one more way to achieve pleasure.