So we have some newbie type questions appearing recently and a lot of the answers center around one theme which is a great "generic" tip: HAVE A PLAN!
Said otherwise...do everything in the churning game with intent...if you look at some of the answers posted by me,
@Lain @calypso726,
@Albort, etc...you'll see this theme of having a plan.
Back in the Wild West days of pre-2015 this game had far less rules and was much easier so you could be relatively successful without a plan. These days, with numerous application rules and anti-churning restrictions a plan is much more necessary. Here's some tips on how to make a good plan:
1) Know your goals - what airlines help you get there, what hotels work best for you, what can you do with the transferable points (URs, MRs) that help you reach your goals. Be creative too - see what points transfer to other programs if you're trying to earn extra points (i.e. SPG to airlines or Marriott to Southest)
2) Think YEARS out not months...seems crazy but having a rough plan of what cards you're going to get over the next 2+ years helps a ton. Make sure your plan is compliant with all the rules of the various issuers. Space out applications, use AMEX Biz cards to give your credit report some relief, try to not do too many small min spends consecutively (I.e. Do a $500 min spend then follow up with a $4,000 to slow your roll so to speak). This long term plan is especially useful when in 2 player mode in my opinion.
3) Be FLEXIBLE - so you have a 2 year plan and suddenly the Citi Prestige comes out with a huge bonus and wasn't even on your radar... call an audible and grab it (if it aligns with your goals). Then get back on plan (or reassess if the plan has changed at all).
4) Don't just jump on a "great offer" if you have no use for it. Make sure it fits your plan or at least was on your radar...make sure that every move you make has intent. You will only be approved for so many cards before you start to get some push back. Points are great - points you have no use for are not!
I'm sure I missed some thoughts here but the summary is that those that are most successful at this game have a great plan and are very organized. They make intentional moves that fit their goals and thus are able to maximize their return from the points earned.