Bus service is reliable within Glasgow, and connections are convenient from buses to trains and the underground. Note that buses require exact fare, which varies by the destination, though it's usually around £1.
The many bus companies cooperate with the underground and ScotRail to produce the Family Day Tripper Ticket (£15 for two adults), which gets you around the whole area, from Loch Lomond to Ayrshire. The tickets are a good value and are available from Strathclyde Passenger Transport Travel Centre and at main railway and bus stations.
Strathclyde Passenger Transport Travel Centre (St. Enoch Sq., City Center. 0870/608-2608. www.spt.co.uk).