My girls are 15 months apart and are currently 2 1/2 and 1 1/2 years old. It took a good 3 weeks at least to start feeling a bit more physically normal (stitches healed, less bleeding, etc.). By the time I went back to work at 12 weeks post-partum, I was pretty much back to normal all around. (It helped that my girls were good sleepers.)
I can honestly say that my husband stepped in and helped out with more things around the house than he did before and it's kind of stayed that way. At least right now while they are so young he is fine with doing more of the cooking/cleaning while I take care of the girls. Especially since we both work full-time it's really important to share in the duties.
I will also say this - don't expect too much of yourself too soon. Give yourself the time YOU need to heal and recover. Everyone's experience is different. Just enjoy your family and get adequate rest. :)
It's awesome having 2 girls close together. Mine are so cute how they talk to each other, help each other and play together. The older one can sometimes understand something the younger one says that I didn't get, so she is my little translator. Not to mention all the cute clothes....you will have a blast with them!