LifeMiles Buy miles and get up to 125% bonus till 27th February
LifeMiles are running one of their semi-regular bonus miles campaign for those that have an immediate trip in mind. If you purchase miles between the 11th and 27th of February you will be eligible for a bonus as per their tier structure. There are some caveats, I believe the account has to be open for a week before you can purchase.
Last year the user interface of LifeMiles was completely overhauled and searching is nowhere near as fun (or as easy as it used to be), but flights are still available to book. As usual, I wouldn't stockpile them up, but if you have an immediate use, such as my Singapore to New York example of EVA Air Business Class for 78,000 points per person, it's a great way to fly.
For 2 people one way, this trip would cost you US$2,475 + US$155 = US$2,630 or S$3,645