"He who hesitates is lost"

I never seem to get the right balance beteen being cautious and just going for it!

My brother lives in Stockholm and Ryanair have been offering £2.00 flights inclusive of all taxes and fees for January, i.e. £8.00 for me and my O.H. I thought, should I just go ahead, at that price it doesn't matter if we have to cancel, or should I check the timings with my brother when he returns from his present trip. Caution got the better of me, so I texted him last night and was awaiting a reply. I checked the flights this morning and they have quadrupled in price since last night! It's still a good deal so I have booked it anyway, but now I'll probably get the text saying those dates are not convenient...