I have been jacking off for nearly fifty years and frankly enjoy it more now than ever. I'm more relaxed and my technique has improved. From time to time over the years, I get the urge to taste my own cum. It is somewhat puzzling, but like a lot of men who post here, my desire to taste it builds as I jack off and then subsides rapidly just before I ejaculate.
I have gone ahead and licked it off my hand a number of times. It is not unpleasant or particularly satisfying. A couple of times, I came on my wife's tits and licked it off. She seemed to enjoy it, but didn't crave it.
I have seen several suggestions here, including ejaculating into a dish to use later, even freezing it. That doesn't appeal to me. However, I happened upon a satisfying method. I don't like to interrupt jacking after a certain point and one day didn't have a convenient place to shoot. I grabbed my clean, white handkerchief and came onto it. I placed it aside.
Not much later the same day, I got horny again watching some lesbian porn. As my orgasm began to build, I noticed the handkerchief. I picked it up in my left hand as I stroked my cock in my right. I raised it to my nose to smell the cum and it was still damp. I was at that stage where the desire to taste it was strong, so I started sucking the cum out of it. The taste was pungent and it really satisfied my desire. The excitement built very high and I surprised myself by ejaculating a lot more cum than the first time.
Now, every so often, especially when I know I will have enough alone time, I cum into a handkerchief and get ready to suck it out a little later. My wife knows I jack off, we just don't discuss it much. However, this technique gave me some more confidence so that recently, after bringing her to several orgasms, I jacked off on her stomach. I immediately buried my face in my cum and licked it up. This time, she seemed to really like it, so it may happen more often.
In any case, using the handkerchief might work for other men who are looking for a way around the odd drop in desire to taste cum right before ejaculating.