My DD's are just over 2 years apart- 3y9mo and 18mo now. My oldest DD has always LOVED helping with EVERYTHING so I can definitely identify. When baby DD came along, big sis was right there all the time. Having a toy baby helped a lot so she could mimic me. Even think of things like turning out the lights in the room when you put baby down for a nap.
We had her get diapers, get wipes, throw dirty diapers away, get blankets, etc. Pretty much anything she could do without harming herself or the object (or the baby!), I tried to have her involved -- that kept my sanity as well as hers. If I didn't let her help, DD would have driven me nuts!
Good luck! It's a crazy and trying time, but it goes by fast!
