Right, I have now investigated prices, and checked that my bus card is still 'active' (though not topped up obviously)
I've worked out that if I stump up for a quarterly pass for myself, I'd only need to be out for 2 or 3 days a week for it to be worth it. And usually I use the bus more like 5 days a week. For me:
1 week pass is £18
4 week pass is £58
13 week pass is £148
Whereas even a short-hop fare is £1.60, regular is £2.30! A pass for the day is now £4.70.
By getting DS the ID card, I'll make £39 of the £50 back on one quarterly pass, as it's half the cost of the regular child one which I'd have to get if he didn't have it.
It's a no brainer really isn't it.
I don't have the money to spare to get it at the moment though, because the DCs' climbing and trampolining club fees are due (only twice a year but unfortunately it falls in January!). So I might ask mum if she would mind a loan, would give us a bit of breathing space and just take bus money out of the equation for a bit which would really help (my parents have always been fine with that - we virtually never ask, and always pay back, just in case anyone thinks I'm taking advantage!). If not I will get it on CC as I think even with interest, it's still money saved overall.
Either way, the plan I think should be to get my quarterly pass, as that's obviously the most expensive one and the most money saved IYSWIM. I'll send off for DS' ID card and then take it from there - although it would be convenient to have all the passes renewed at the same time, it might be better to stagger them so it's not as much money at once. So I might get DD's quarterly quite soon (need to get her an electronic card) as at only £39 it's manageable(ish).
Bit freaked out by the amount of money it's taking up front but it's got to be worth it hasn't it? Also, with the electronic card, it's safe if you lose it (they block it and send a replacement) so there isn't the worry as there is with the paper passes.