I used microfiber in the past and just love the way they pick up dirt and stuff.  These I got a 36-pack for like 23 dollars.  That is quite a good deal considering buying these seperate can cost 2-3 dollars.  Anyways, the size isn't too large and it isn't too small, it's perfect.  I also got 12 yellow, 12 green, and 12 blue which I was hoping because I didn't want all one color like some people claimed.  I took the advice from someone else who ordered them.  I have the blue ones in the garage for the car, the yellow in the kitchen for the countertop and dishes, and the green ones upstairs in the laundry room for upstairs use.  Each one has a tag on it on how to wash it and stuff, which I don't like but I don't want to pull it off and ruin the towel so it will stay on I guess.  Anyways, I bought these for cleaning my car so it gets dry and I use them for dusting.  It's a dust magnet, the stuff really shines after quickly wiping them off with one of these towels.  Good towels and definately worth the money without question.:Update:So I have been using these things for a couple days and let me tell you, what a great value for what you get.  These things pick up stuff so well.  I just washed our kitchen floor with one of them and it picked up almost every single hair and particle imaginable.  It used to take me like 5 wipes across with a regular rag to get the stuff but it sticks to one of these things so simple.  I hope it comes out in the wash though, I tried to squeeze some of the stuff out and some came out but not everything.  Either way it made the cleaning so much easier.  Maybe I will have a dirty one dedicated to just the kitchen floor so I don't ruin them all.  Anyways, go out and get these things you won't regret it.  They are worth more than a dollar a piece and Amazon's deal is fantastic.:Update-2:I have had this same pack of 36 for probably a year now.  I am down to my last few though, so I am going to re-order.  I used them very heavily and 23 dollars lasting me a year, these things are way worth it.  I used them to clean my car interior/windows.  I used them to clean kitchen sinks and coffee tables.  The dust these things pick up is remarkable.  I used them very heavily to clean our tile kitchen floor and wooden floors.  I think that's the reason I threw some out because they got so picked up with dirt and grime.  Our kitchen floors take in heavy traffic and after using these with some all purpose cleaner on the kitchen floor, it looks like new.  For dusting stuff off they are amazing.  I don't know what else to say, but I am pretty sure this is the longest review I have here on Amazon, and I have quite a few reviews.  These things have made our house spick and span, and I am a very picky cleaner.  You won't regret getting these, they save so much money from not spending and wasting paper towels.