Hey all, I've been a member of these forums for a while and want to start taking advantage of all these bonus credit card offers. I fly weekly for work so I have about 50K miles on each of the major airlines (Delta, US Air, American). About me: 1. I'm in my early 20's. 2. Have had 1 personal (Citi Forward, gives me 4x points on food which is my main spend) and 1 corporate/company credit card (Amex) for the past few years that I've always paid fully and on-time (carry $0 balance). 3. I spend about $2,000 a month on my personal credit card. My main questions are: 1. How does applying to new credit cards affect your credit score? I've read it reduces your score 5-10 points but does that vary depending on how many cards I have? 2. Based on currently just having one card, what sort of approach should I take? Open a new card today, wait 6 months to open the next, and so forth? 3. How long do/should I keep each card open? Ideally, I open it, spend whatever is required the first 3 months and then close it but I can only assume this hurts your credit score. I've done a lot of reading through the forums but haven't been able to find the answers I'm looking for BASED on my habits / credit history. I'd really like to hear your thoughts. P.S - If this has already been discussed, I apologize for posting again, please link me to thread.