Bajjo is in the Seeta region of Kampala, near to Mukono and about an hour in no traffic from Kampala town centre (or two or three if the traffic is bad). Although now considered part of Kampala as the city centre has expanded, it wasn’t originally. To get to the town centre, from Mummy’s house you need to jump onto a boda-boda, which is a motorbike driven by a crazy Ugandan, for about 10 minutes, to Jinja Road (one of the main roads that goes into Kampala). This costs around 1000 shillings for a Ugandan, and between 1-2000 shilling for a Muzungu, “white person”, or any poor Ugandan who happens to be travelling with one! You can usually get them down to reasonable price, but the problem you face is they don’t see you as a person, simply as a walking dollar sign (they assume your American, so I can happily say that have absolutely no dollars at all when they ask!) This is not unusual in this culture, but I think in developed countries such as the UK it would be classed as racism.
Once you reach the Junjer Road, assuming you still have some money left, you can get to Kampala using a taxi (known as a Matatu in other areas). In non-peak times, this should cost between 1-2000 shillings, but should never cost more than 3500. Often as an “walking American dollar”, they will raise the price by 1000+, but you can ask them to lower, or tell them it’s too high, and they will usually put it down. If they won’t, there is always another taxi next door. If none will lower the price, it usually means it’s about right, so it becomes pointless trying to get it down any further.