S.H.
in my family of 4, our birthdays are just 6 weeks apart....beginning to end!
We combine birthdays quite often. I have found that an open house is the easiest to do. Have a couple of crockpots going, lots of munchies, appetizers, etc.....a good selection of drinks.....cake.....& you're good to go! Add some fun decorations & some good music.....& you'll have it all nailed!
On the flip side....next year, my Mom will be 70 & I will be 50 (aaargh). I have flat-out told my family that I DO NOT want a party. I want to travel with my Mom.....& that's it! Well, actually, I said, "put the money on me....forget feeding a whole crowd!"