I worked for WW in NZ, and we saw a lot of people really reluctant to use their 49. But sitting behind the desk, talking to people and looking at the data, I was really struck by the fact that the people who used most* of them were the people consistently losing more weight. So don't be scared of them - they're there to be used!
*by ''most'' I mean between at least half
I personally add about 5 onto each day, and use the rest for treats/extras whenever I like. Or if I know I have a special event on, I'll just add a couple to each day. I usually use about 45 of mine in total, because I like to keep a few there as a buffer in case I miscalculated anything!