Baby getting used to "Arms"...?

Sara • Mommy to Ayden Alexander & expecting a princess in Dec. 2015!
Okay so my baby girl always wants to be in arms... I don't have a problem with it or even co sleeping. My SO and family members keep saying I should lay her down in her cradle and not pick her up unless she's crying. I just have things I need to get done and need both my hands for. My first born is now 5 and slept really well on his own but my DD has trouble staying asleep. But I'm all ears or opinion or suggestion because my arms hurt, I need a shower, and the dishes are piling up etc. How do you co-sleeping mommys and mommys with other children get things done? 
I don't have a baby wrap or carrier or a swing. What works???