Not many have electrolytics below 1µ, but I mistakenly ordered 100n, 220n and 470n electrolytics way back when;
so here's another general caps tip in case you don't already know:
Parallel caps sum.
If you've got a couple 470n or a 470n and a 560n you can PARALLEL the two caps together, which sums them.
470n + 470n = 940n (just 60n short of 1µ, so close enough)
560n + 470n = 1.03µ
As BtR mentioned above mind the polarity and make sure they're parallel — they do something completely different when in series.