  We study combinatorial principles known as stick and club. Several variants
of these principles and cardinal invariants connected to them are also
considered. We introduce a new kind of side-by-side product of partial orders
which we call pseudo-product. Using such products, we give several generic
extensions where some of these principles hold together with not CH and
Martin's Axiom for countable p.o.-sets. An iterative version of the
pseudo-product is used under an inaccessible cardinal to show the consistency
of the club principle for every stationary subset of limits of omega_1 together
with not CH and Martin's Axiom for countable p.o.-sets.
