There has been mentions of posters getting in to time pressure in various threads recently so I figured it might be useful to have some sort of a thread were people would post tips on how to manage your time properly during a game.
Below are some tips that I've received/overheard/read about during my chess "career". They are not some definite truth, take it all with a grain of salt and if you don't agree with them, speak up
Here goes,
NOT in order of importance, just numbered to make it easier to follow.
1. Pay close attention to your clock at ALL times.
This sounds pretty simple, but don't be fooled - I can remember countless occurrences where my students would pay no attention to their clock in the opening, explaining it with something like "well but I do have like two hours left at that stage, I don't really have to worry about it!". Indeed, you don't have to "worry" per se, but you cannot completely ignore it and spend 35 minutes on move 7 just cause you have a lot of time left. Now by the time it's move 25 and you really need to take some time, you realize that you don't have any left!
2. Do not waste time when not necessary.
Again, pretty simple, but people still do it all the time. Now what do I mean by not necessary? For example in some very sharp tactical position your opponent captures your piece - very often, it is wise to spend at least a minute or two before recapturing to see whether there are some intermezzo's and stuff like that - that is definitely not a waste of time.
Now imagine that you play some random line with white including Bg5 pin, your opponent plays h6, you play Bh4, he plays g5, and you don't have any sacs available, you only have one move, Bg3 - make the damn move immediately. If you write down your opponent's "g5", clean your glasses, take a sip of your water and then play Bg3, I can congratulate you - you just wasted a minute of your time. You can do all of those things after playing your move, so why not save that minute?
3. Make opening decisions BEFORE the game, not OTB.
This requires some explanation. I am not talking about those instances where you get surprised by your opponent - then definitely take your time. Just recently I was watching one of my students play a game, he was white in the Sicilian Najdorf, 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6. In this position, he plays 6. Bg5 about 95% of the time, with remaining 5% divided between 6. Be3 and 6. Be2. I kid you not, he spent more than 5 minutes in that position and ended up playing 6. Bg5. After the game, I asked him what he was thinking about, and he said he was trying to decide which one he should play.
WRONG! You have to make those decisions before the game. "Against Najdorf I will play 6. Bg5, against the French I will play 3. Nd2, etc." It makes your life so much easier it's not even funny. The thing is, in situations as described above, you will play your regular move like 99% of the time, which means that you just wasted five minutes which you could have used when your opponent actually surprised you on move 14 or something..
4. Minimize your losses
From my personal experience, this one is crucial. Imagine some complicated middlegame position. You spend 30 minutes trying to calculate some complicated line but you are hitting a brick wall and not making any progress for past 10 minutes, basically just going over the same line over and over and over in your head without finding anything.
STOP IMMEDIATELY! What is likely happening, is you turning your tunnel vision on, which definitely won't lead to anything good. There are two solutions - either pull "the Tal" and go to that line based on your intuition, or abandon the line all together and try to have a fresh look at the position. If you haven't found anything in those 30 minutes, it is extremely unlikely that you will suddenly find something if you spend 10 more minutes on it, so don't waste your time.
***NOTE*** Use this rule of thumb only in those instances where you are not making any progress in your calculations. If you are making progress, you can try to keep going as long as you think you can spare time to do so.
There is definitely something else that I am forgetting now, will try to remember more. Please, any constructive input is very welcome