Teach your children how to read. I don't mean the academic stuff, there are a lot of books on adventure, discovery eg mountains, continents, stuff under the sea etc. then depending on age, you can read together and discuss as a family. Helps you bond with the kids and they know that you are always available for any questions. You can also buy bible stories that are age specific at Text Book Centre and Christian Bookshops and do simple Bible Stories in the evenings with them. This will help you avoid tension filled TV with so much politics.
Buy cookery books and learn how to make stuff with them like pizza. these are small activities that help parents get close to children and you are able to 'listen' to a child then.
Another good place to get second hand books is Toi Market, next to Winners Chapel, you'll be amazed at the stuff they have for Kshs100 each. With Kshs 1,000 you can get 10 books per month and build a home library polepole.
I can do everything through Christ who strengthens me: Phil 4: 13