keep forever

“That’s one we’ll keep forever,” Dunn said.

"It has lasted five-and-a-half unforgettable years. Plenty of memories that I will keep forever close to my heart," said Laporte.

“I hope to have a photo from that moment, ’cause I’m going to keep forever.”

“And some of these videos that they got are really nice! There’s stuff from fans that I’m probably going to keep forever.”

If you don’t want to have to keep forever changing your maps and signposts to avoid offense, it’s probably best to go generic.