What do I do with the milliseconds

My son insisted that I upgrade my browser to IE8 from the IE7 that I was using. In fact I was still not too comfortable with IE7 having installed it a couple of months back after years with the old familiar IE6. I am told that the IE8 is much faster than the IE7 by a few milliseconds.
My point is what do I do with the milliseconds that I have saved.To old fogies like me, seconds and minutes have no meaning. Even hours and days seem to have lost their relevance. One lives in months and years and in one's memories. Was it in the year 2007 that I had that that brush with cancer or was it the year before. Does it really matter. The years have gone by taking all the millions of milliseconds with them and I am still unsure of what to do with those that I am supposed to have saved with the faster browsers.
If there had been some way of saving them so that they made any difference to my tired body and mind, I would have welcomed it. But these savings are not cashable or even usable, when one is really living life one day at a time and not thinking of the next one.