Entertaining a three month old

My baby is coming up on 3 months and I've been off work so far and I'm going back in a couple of weeks now that my baby is up longer I'm having a hard time finding things for us to do. we play in her bouncer , we lay on the floor , play with light up toys, I read to her, we play on the swing from mamaRoo, we walk around with her my baby . because the bouncer only works for so long. What do you will do with your babies lately I feel so exhausted trying to entertain your throughout the day?