Spend offer from United for my Explorer card:
spend $500 in Jan, get 1000 bonus miles
spend $500 in Feb, get 1000 bonus miles
spend $500 in Mar, get 1000 bonus miles
Spend $500 in all three months, get an additional 1500 miles, for a total of 4500 bonus miles.
It’s as if they know my card renews in January and I am planning to get rid of it.