Hi, I'm new to this forum! I'd like to know what "for what it's worth" means. I've seen it quite a lot but I can't seem to figure its meaning out. "Check voltage levels or, for what it's worth, just replace the power supply." "Why did you come back? Or for what it's worth, why didn't you just wait"? Sounds a bit like a try-that-if-the-former-alternative-doesn't-work-or doesn't suite-you statement but I'm not too sure. And what about "for that matter"? I've seen tons of exemples by typing it on Google and yet I failed to grasp its precise meaning. "Write a Book, or anything for that matter." "Depression, or for that matter, Inflation." "Why Quantize Gravity (or Any Other Field For That Matter)"? "The sources of pollution of Ganga or for that matter any other river can be classified broadly into two categories." Here it seems to be more like "that second things is also concerned by the statement.", right? Thanks in advance for your kind help.