Cleaned my hybrid on Sunday. Get myself all shiny, ready and bright for my commute this week. I also needed to fix a puncture on my tube. Spent an hour cleaning the bike and oiling it. Fixed the puncture. Stuck the tube in. Had a shower as I was caked in dirt. Really clean and fresh after shower. Went to put bike in shed. Flat tire!!!!!!!!! It was now 2pm. Bugger it. I'll put my spare (also puncture repaired) tube in Monday morning. I'm clean, you see, my first can is opened and I want to sit in the Garden reading the paper. Woke up at 5.30 this morning. Cup of tea. Checked tyre and rims for sharp things. Put in spare tube. Breakfast. Tolf my son to go back to bed (he woke up at 6.15). Checked tyre pressure at 6.30. Still fine. (If it hadn't been I'd have come in on my fixed). Left home at 7am. 14 miles into work takes me 1hr 5 mins. Felt good. About 5 miles on at Colliers Wood the tyre started to go spongy. Bugger. Dismount and repump. 4 miles further on tyre goes down again. Bugger. Dismount and repump at Clapham North. 3 miles further on, tyre goes flat again (just before Imperial war Museum). Dismount and repump. 1 mile further on. Tyre goes flat. Bugger. But I'm opposite Evans now. Like an Oasis in the desert it is OPEN!!! Buy new tube: £4.50. Put it into the tyre. Pump up. VALVE BUST!!!!!!! Bugger. Re-enter Evans and buy new inner-tube. Another £4.50. BUT - to avoid looking incompetent I pretended it was a "spare" and wheeled the bike round the corner before inserting it! In case the staff saw me. Macho pride and all that. To be honest I felt like crying with frustration at that point. Stuck in new tube. Just shy off Blackfriars Bridge. Cycled last mile or so to work. Got there at 9am!!!!! Thing is, I wasn't late!!!!! But you don't want to do that every day. And I still need to buy a spare inner-tube another (£4.50). BEATING MY HEAD AGAINST THE WALL, I WAS!!!!!!!!!