21.  A car is quite a big expense, especially when you consider maintenance.

22.  A central zone leads to other areas where you can test yourself, gain information, do puzzles and so on.

23.  A certain amount of mental arousal is necessary but too much causes you to lose confidence in your own abilities.

24.  A certain amount of your pension or allowance is yours to buy personal items like clothes, shoes and toiletries.

25.  A change of clothing also lets you off the hook.

26.  A cheaper alternative to glass is to double glaze them yourself with plastic sheeting, but this will obviously affect their appearance.

27.  A child with low motor tone has much the same challenges as you would as you struggle on ice skates.

28.  A church that stood upon a grassy hill and to which you mounted by a flight of steep stone stairs.

29.  A class action can drive you crazy.