Well, why not? Husbands don't think of Valentines in terms of spa certificates anyway. And if your darling is a typical man, he would love having a handy utility knife in the glove compartment and at your home for all those little things you need help with.
In our case, for all the repairs he needs to do on toys.
There are sooo many possibilities online (yes, I was surprised too at how varied the choices are), www.martorusa.com even has a blade recycling program for those who prefers to go green. Just think of your needs and habits and get a blade of your choice.
And your man is sure to appreciate a gift that took into account his innate need to create and desecrate, haha.