Rotherham manager Steve Evans will remain grounded ahead of their final match of the season at home to Aldershot next Saturday following their 1-0 win at Plymouth.
Kieran Agard scored the 75th-minute winner which keeps Rotherham third and two points clear going into the final match of the season.
Agard applied the deft close-range finishing touch after skipper Johnny Mullins headed down Joe Skarz's 50-yard free kick into the six-yard box.
Evans said: "It was another hard-earned win. We keep saying there are 46 battles in this league and credit to Plymouth I thought they were terrific in every aspect, from the first to last minute.
"We dug in, we worked hard and we just stayed true to our principals and believed that if we did that we would make a chance or two.
"We had real strength and togetherness and I can only say positive things about these players.
"We always maintained since as far back as August that I could see this League Two campaign going to the wire, to the last day and here we are going to the last day.''
Plymouth's defeat means they slip to 19th, two points above second from bottom Wimbledon, going into next Saturday's final match at Rochdale.
Argyle boss John Sheridan said: "I thought we played well against a team who are going for automatic promotion. We matched them."
"I didn't see any danger and in the second half we were taking the game to them. We just switched off, it's a straight ball into the box and it ends up in the back of the net."