Rangers manager Walter Smith has admitted that any lapses could prove costly in the SPL title race this season.
There has been nothing to separate the Old Firm rivals so far, with Rangers and Celtic both claiming maximum points from their opening six games.
Smith, currently preparing his side for a lunchtime kick-off against Hearts on Saturday, expects the battle to be tight right until the end.
He said: "That statistic makes it really important. It would look as though there is not going to be a great margin for error for us.
"I can only speak from our own point of view and we have had to work very hard to achieve that.
"There have been some good games and some close games already and, although we have managed to edge every one of them, we appreciate there are always going to be difficulties lying ahead.
"Both clubs have got off to a really good start and it certainly means we've got to be aware of the fact that we're not going to be allowed to drop that many points this season."
Rangers will again look to Kenny Miller to provide the goals after bringing his tally to 10 in the SPL so far, earning him the Player of the Month award for the second successive month.
"He has been terrific for us since the start of the season and that's been mirrored in the fact that it's two in a row for him in terms of the award," said Smith.
"He thoroughly deserves it, his level of goals have been terrific, his performances have been terrific and he is on a really good run of form at the moment.
"In one of my seasons here previously, Marco Negri started in a very similar vein and had 30-odd goals by January.
"I'm just pleased more than anything that Kenny is getting a number of goals. I think Kenny has changed his play a little bit.
"Before, he would always have been looked upon as being a really unselfish player who wanted to supply more opportunities for others rather than score himself.
"He's turning that around a little bit at the moment and he's getting on the end of things. He's doing very well at it."
Miller is certainly on course to reach a staggering goal haul and he hopes to play as much as possible to maximise his chances of having a successful season.
He said: "I want to play in every game. I got a rest last week against Dunfermline and I was disappointed not to be playing in the game.
"This week has been tough, not just for me, for all the lads.
"You play on Sunday, then you have a Champions League game on Wednesday with all the effort and energy you have to put into that to get a result, and then you are away again on Saturday.
"It's been a really demanding week and training has been pretty low key because of the games.
"As long as we go to Hearts and get the three points, it will be the end of a really good week."