Other biz u can do. But most profitable ones are the types their are talent like jobs.
Okies, The ridiculours type
1. Get a grill, buy a bunch of banana start roasting boli, same for suya/asun spot
2. Buy 2 bags or poor-water

(aka pure-water) and iced-blockz start vending
3. Buy 1 bumper card, and N500 recharge card. Come stand infront of LASU gate. Phone call here. (I think everyone on the forum have atleast a cellphone)
4. Most hawking biz are cheap start

Talent type
1. Book for 1week of night browsing in cyber-cafe. Start yahoo yahoo. Cos $10 bucks wont get u starcomms and lappy.
2. Buy a mat. Go under Ojuelegba or some hot spot. Where thick sunshades. Raggy cloths. Pretend your blind and poor. And for better biz. Make sure there is an atm machine close to your stand. So u can canvass them to cashout from ATM to give u. U'll make a lot if u even have a POS Machine.
3. Get a glo sim and load money into it. Sell small credit unit to ppl that want to by N10, N20, N30 and N40 u sell adding N5 profit
Men I can't think anymore.