Just got an offer for 10% back on travel and entertainment purchases until the rest of the year. With a max of $100 per month (so $1000 max spend per month). No minimum on the spending requirement.

If this was back when my job had me flying often for work, I would have been very happy. But since I don't travel much this year, I wouldn't be able to make much use of this offer unless I decide to go to a concert or something. Just a free 10% on travel and entertainment on up to $1000 in spending per month.