I have One of the small alloy foot pump's off that site.They are very well made and work well.
I also take a some webbing to use as a tow rope ,a pair of thin rubber gloves...nothing worse than putting dirty hands inside your riding glove's and then your hand's get dirty every time you ware them
also a pair of good long tyre levers,and a tube repair kit.
one rear tail light bulb inside a old 35mm film case,fit's a treat.