Hi Nenek!
Good to know that you're going to Indonesia. Are you looking forward to it?

I don't know what you expect from Jakarta, but do check the pubs or bars and cafes in Jakarta. It will give you a different perspective of Jakarta . Embassy is a popular club to hang out, but if you prefer somewhere to sit back and enjoy live music, I'll recommend Burgundy at Hyatt's or Bats at Shangrila. Don't bother going to Hard rock cafe, Planet hollywood. The Cafes in Kemang area are good places to visit too, though they are not as popular as they used to be. And don't forget the malls. I know they are just mall, but they are pretty much a lifestyle in Jakarta Don't forget the food, nenek!!! I encourage you just to try everything and eat eat eat Noodles, Satay, Indonesian fried rice are a must!

I hope you get to see Bali. If you like clubbing, the place to go is 66 or double six, at Seminyak. Don't go to Kamasutra, I don't understand why it's so popular. It's dodgy, dodgy and dodgy, although I have to admit that they do good cocktails. There are plenty of pubs and bars at Dianapura, but I think Liquid is the best one.
Must visit Kudeta, the food is expensive, so just go for drinks. You'll love the ambience, and it's really romantic. For food try Bebek Bengil, Warung Made, Rumours, Warung Batavia and Wardani.

Make sure you go to Ubud too, see the rice terrace and the market. Plenty of temples to visit and monkey forest too. If you feel adventorous, try rafting. It's fun.
And go to the beach, nenek. Do go to the beach and some boogie-boarding, get a nice tan and check out the surfers!!!