Any advice on naps or trying to occupy them???

My 4 month old hardly naps. We've gotten lucky with nights since she does sleep then jus waking up to eat. I've tried everything I can think of but there's days where she might only sleep for 20 minutes through the whole day or will just crash after being wore out. And another thing, I know she's young but there's times where I jus try to get the laundry and I'm not out of the room for 5 seconds without her screaming. I'm a working mom so she's with her dad the biggest part of the day and I've started a schedule but it's hard because I know her dad doesn't stick to it very well but if anyone has any advice or is maybe going thru the same thing, Thank you :)