One not very well-known feature is that American Express customers can transfer their Membership Rewards points between card accounts in different countries, and I just did this with a sizable amount.
I recently got an offer to upgrade to the German Amex Gold Card for 65,000 MR points and I jumped on it quickly as decent offers are rare in Germany, especially with a reasonable spend requirement.
A great solo travel tip spotted this week on LoyaltyLobby.
