The Empirical Manifesto

I made the mistake of telling the kids I was getting them the exact same thing for their birthdays this year. Bad move on my part, because now I can't give one their gift without altering the other (their birthdays are four months apart). Admitting my mistake to them, we worked out a plan to give them their birthday presents at the same time, one child two months early, and the other child, two months late. The date will be April 1st. In addition, I promised them one (and only one) hint: "While the tangible, non-cash gifts are identical, you will each use them differently." I've promised them they will love the gift (I usually suck at gift-giving), but one thinks I'm overstating and the other remains cautiously optimistic.