back of a spreadsheet; back of the net

I've found them perfect in the office - most days I pop them in at 6.30, and take them out around 10.30 at night. This isn't ideal practice, and I've been doing it for about 10 years now (I've always had soft lenses, but went from the yearly to daily versions pretty quickly). My most recent, very thorough eye examination showed a little bit of inflamation, but very mild and perfectly acceptable. I've been advised to move on to the next advance in lenses, and I will, just as soon as I use up the six month's supply I've built up. It's amazing how quickly that can happen when you don't wear them every day. I pay about £20 a month, if that's a help, and I also have a pair of glasses for night time forays to the loo. You'll understand when you're older.