Blessing for Dwelling in the Sukkah
It is a mitzvah to celebrate in the sukkah. While the Torah instructs us to live in the sukkah for seven days, many choose to only have meals in the sukkah. When eating or reciting kiddush in the sukkah, recite this blessing:

Baruch atah Adonai, Eloheinu Melech haolam,
asher kid'shanu b'mitzvotav v'tzivanu leisheiv basukkah.

Our praise to You, Eternal our God, Sovereign of all:
You hallow us with Your mitzvot and command us to dwell in the sukkah.

Blessing for the Lulav
The lulav is held up in the right hand, and the etrog is held pitom end (pointy side) down in the left hand. Facing east, recite the blessing. Then turn the etrog up and shake the entire bundle three times in each of six directions: straight ahead, right, back, left, up, and down.

Baruch atah Adonai, Eloheinu Melech haolam,
asher kid'shanu b'mitzvotav v'tzivanu al n'tilat lulav.

Our praise to You, Eternal our God, Sovereign of all:
whose mitzvot teaches us holiness and who instructs us to take up the lulav .

Shehecheyanu
The first time you wave the lulav each year, recite the blessing marking a special occasion:

Baruch atah Adonai, Eloheinu Melech haolam,
shehechehyanu, v'kiy'manu, v'higianu laz'man hazeh.

Our praise to You, Eternal our God, Sovereign of all:
for giving us life, sustaining us, and enabling us to reach this season.

From Birkon Mikdash M'at: NFTY's Bencher , by the URJ Press and NFTY.