What should i look out for when buying a tripod?
I have been into photography since I was 8 years old, maybe younger. My Dad was a WW2 Army Photographer, so I got into it early. That said, I have pretty much owned a tripod since I was old enough to leave home. 40 some years. They all lived in the darkest corner of my basement or my closet, un-used. But I always had one, just in case. I hated using them, it was easier to buy fast film.
Now I'm getting older and wiser I hope. I bought my first really decent tripod a couple years ago, forced myself to carry it everywhere and use it. After all, it was a pretty stiff investment with the pod and the grip action ball head, so I had to give it a fair shake.
Well, immediately, my pictures got sharper, and I didn't have to stand around holding a heavy, and getting hevier every minute, camera and lens all day. I could pick it up, throw the whole thing over a shoulder and walk anywhere with it, put it down and it would take the weight of my camera and lens, leaving me to huff and puff and get my wind back, and yes, lean on it when I needed to also. And it still takes sharper pics than I ever could hand holding.
Now throw in shooting eagles for two hours while standing out in 22 below zero weather with a 25 mile an hour wind. A tripod is worth getting use to. If not for the extra sharp keepers you will start getting immediatly, then for something to lean on and steady you when you got your eye to the peephole and hand on the ballhead and you get vertigo or your hands are freezing. 
So look for a sturdy yet light weight pod, which means a little money spent, and get a decent ballhead, or, get the cheap junk and then buy the good stuff later, cause you won't be happy with the cheap junk for long.