I've been doing that for years, only instead of a credit card I slide the tube across the edge of a table or a door frame. Very similar tubes are used for hand cream - when those can't be squeezed any more my Grandma cuts them in half and digs out what's left with her finger. You'd be surprised how much cream is in there! After cutting it open it lasts for another 1-2 weeks!
Dieselbeetle, have you been to
Ecorenovator?
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e·co·mod·ding: the art of turning vehicles into what they should be
What matters is
where you're going, not
how fast.
"... we humans tend to screw up everything that's good enough as it is...or everything that we're attracted to, we love to go and defile it." - Chris Cornell
[Old] Piwoslaw's Peugeot 307sw modding thread