This 75k Hilton offer has expired. Check out the best current travel credit card sign up offers here.

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The Hampton by Hilton Warsaw City Centre is listed as a Category 3 hotel but prices as a Category 2 hotel. That means you can book it for 10,000 Hilton points per night instead of 20,000.

This 75k Hilton offer has expired. Check out the best current travel credit card sign up offers here.

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The Hampton by Hilton Warsaw City Centre is listed as a Category 3 hotel but prices as a Category 2 hotel. That means you can book it for 10,000 Hilton points per night instead of 20,000.

I don't spend much time in hotels (here's a breakdown of where I'm sleeping as I travel 365 days this year), but I've been looking at booking some upcoming hotel stays. I carry several co-branded credit cards, but as I've crunched the numbers, my Citi Prestige® Card has come out as a better option for paying the hotel stay in almost all cases.

That's especially true if I'm looking at a four night hotel stay, since the Citi Prestige® Card offers the fourth night free on paid hotel stays, which is an ~25% rebate (more if you're doing it right.

Update 7/9/15: All these deals are dead. The Citi® Hilton HHonors™ Visa Signature® Card has come out with an even better offer! 75,000 bonus points after spending $2k in the first three months.

Today (June 30) the 60k and 50k Delta credit card offers expire, the 50k Hilton credit card offer expires, and the ability to buy IHG points for 0.575 cents ends. It's a big day for procrastinators.

I do not know the exact times the credit card offers end.

Update 7/9/15: All these deals are dead. The Citi® Hilton HHonors™ Visa Signature® Card has come out with an even better offer! 75,000 bonus points after spending $2k in the first three months.

Today (June 30) the 60k and 50k Delta credit card offers expire, the 50k Hilton credit card offer expires, and the ability to buy IHG points for 0.575 cents ends. It's a big day for procrastinators.

I do not know the exact times the credit card offers end.

This 50k Hilton offer has expired.

This 50k Hilton offer has expired.

This 50k Hilton offer has expired. Check out the best current travel credit card sign up offers here.

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Hilton is increasing the category of 18 hotels and decreasing the category of two hotels for bookings effective July 8, 2015.

If the hotel you want is going up in category in two weeks, book the hotel now to lock in the lower, current rate. Your stay can be through July 7, 2016 at current rates.

These are the hotels getting cheaper.

This 50k Hilton offer has expired. Check out the best current travel credit card sign up offers here.

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Hilton is increasing the category of 18 hotels and decreasing the category of two hotels for bookings effective July 8, 2015.

If the hotel you want is going up in category in two weeks, book the hotel now to lock in the lower, current rate. Your stay can be through July 7, 2016 at current rates.

These are the hotels getting cheaper.

This 50k Hilton offer has expired. Check out the best current travel credit card sign up offers here.

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Until June 17, 2015, you can buy Hilton HHonors points and get a 100% bonus on the points purchased.

Hilton points normally cost 1 cent each. With the 100% bonus, the price drops to 0.5 cents per point.

If you buy 80,000 Hilton points before June 17, you’ll receive 160,000 points for $800.