Seagirl makes good suggestions. It is good to get close to your points totals because otherwise you aren't giving your body the number of calories it needs to be healthy. Eating more may make your weight loss a bit slower, but if you drop your points now, you will have to keep dropping them lower and lower to lose more weight because our bodies adjust to the fewer calories and become more efficient on less (meaning you'll have to keep eating less!).
I would definitely suggest nuts because they are a good source of fiber, protein and healthy fats! Walnuts are the best if you want to add some Omega 3 fats to your life, as they are one of the only foods besides fish with Omega 3s. All nuts and nut butters are good though, as long as you can measure them out and stick to smaller portions!
Avocados are also great for good/healthy fats, and they add so much texture and flavor to sandwiches and stir frys!
Also, if you have 15 left each day, I would suggest having a 'treat'--something that you would think is 'forbidden', because you obviously have the room in your calorie/points consumption, and over the long-run learning to eat 'treats' in moderation is a key to long-term success!
I wish I had more than my 31 points