This is definitely one phrase I'm starting to get weary of hearing! Let me give you some of examples of where it has come up:Case 1Me: Wait, was I supposed to use the distilled PEG to mix with the MeCl??Labmate: Yea, sorry I didn't make that too clear in the protocolMe: Oh goodness...now I'm going to have to redistill my solution and start back at step 2. 4 hours of work down the drain!Labmate: Welcome to research! : )Case 2 Me: These gels are taking a bit long to form, how long do they usually take you?Labmate: Oh about 10-15 minutesMe: Really?? Mine take like 30-40 minutesLabmate: Well are you making new initiator solution for every polymerization?Me: Umm, no. No one told me about that. I thought you could make a batch and it would last you several days. That means I'm going to have to redo...