What's the most you have given in one donation*?

I make the unfortunate journey past a homeless chap at Old Street tube station each morning and have never felt inclined to put anything in his beaten-up plastic coffee cup.

Today, at my local sandwich shop, they were running a promotion of free coffee with each donation to a homeless charity. Remembering the guy I pass each morning I promptly dipped into my pocket and put more-than-a-coffee's worth of change in the bucket.

Does this mean me and God are square, and I can take my place in the Kingdom of Heaven when I kick the bucket (hopefully not the one with the money in as that would be heavy and most likely hurt).

*excludes funraising.